Jump to content

Search the Community

Showing results for tags 'interstellar'.

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • General
    • Announcements
    • The Daily Kerbal
  • Kerbal Space Program 2
    • KSP 2 Discussion
    • KSP 2 Dev Diaries
    • KSP 2 Suggestions & Development Discussion
    • Show and Tell
  • Kerbal Space Program
    • KSP Discussion
    • KSP Suggestions & Development Discussion
    • Challenges & Mission ideas
    • The Spacecraft Exchange
    • KSP Fan Works
  • Community
    • Welcome Aboard
    • Science & Spaceflight
    • Kerbal Network
    • The Lounge
  • Gameplay and Technical Support
    • Gameplay Questions and Tutorials
    • Technical Support (PC, unmodded installs)
    • Technical Support (PC, modded installs)
    • Technical Support (PlayStation 4, XBox One)
  • Add-ons
    • Add-on Discussions
    • Add-on Releases
    • Add-on Development
  • Making History Expansion
    • Making History Missions
    • Making History Discussion
    • Making History Support
  • Breaking Ground Expansion
    • Breaking Ground Discussion
    • Breaking Ground Support
  • International
    • International
  • KerbalEDU Forums
    • KerbalEDU
    • KerbalEDU Website

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


Website URL


Skype


Twitter


About me


Location


Interests

  1. Project Pile turns to Galaxy Mod 8 months ago, I set out to create an ambitious project known as Trilogy, to which I became very burnt out creating. As an escape from working on the same thing daily, I created Flamed Out, which became my first released mod. After that I began creating new projects and announcing them near daily. It began to get repetitive. Start a new project, cancel a project. Everything fell through. I took a break for a couple weeks. And in an attempt to streamline, I present to you; KIP Systems. My take on a GU style mod. *EXTREMELY EARLY WORK IN PROGRESS* Now, you may be wondering; Where did the name KIP Systems come from? The original star name for Trilogy was KIP-2995, a kerbalized version of the HIP name classification for stars. This caught on and eventually became what you see today. "First Look"/Teaser: The Roadmap https://docs.google.com/document/d/1Gcio4zoCganeWupOl5CfWUquvX93POIsGKJL4FQ6Wpk/edit?usp=sharing
  2. Galaxies Unbound: A Stellar Odyssey™ Galaxies Unbound: A Stellar Odyssey™, is the successor of Galaxies Unbound: Nova Kirbani™ and the infamous Kerbal Star Systems™ (KSS). Expanding the kerbal universe with 100 unique high quality exo-worlds for you to explore. Discover the vastness of one of the biggest handcrafted mods KSP has ever known. For those that want to visit the planets without the hassle of an interstellar trip, there is also Galaxies Unbound: HomeSwitch™ mode. This feature of Galaxies Unbound allows you to switch the stock system for one of the interstellar systems with a habitable world (each one with its own challenges). GALAXIES UNBOUND: MULTIPLAYER Compatibility Galaxies Unbound is compatible with: (!!Asking for compatibility with mod x will be ignored!!) Galaxies Unbound is not compatible with: Featuring Galaxies Unbound™ - KSP: STOCK Interstellar Mission to Cer Turi [Galaxies Unbound] by Heliocentric - Manned Interstellar Mission to Thythe by Temitelko44 - GU Unofficial Cinematic Trailer by Shbibe - Galaxies Unbound: Visiting every planet! (Nova Kirbani A) by ballisticfox Bugs and Questions Bugs might have been fixed by now but here's a list of bugs encountered while testing. - Zooming in trackingstation causes crafts to overheat and explode. (known bug - kopernicus) - FPS drop, reports of FPS drops are a general issue in 1.10 - 1.11 modded games. (under investigation) - Crafts on surface load in air (should be fixed) - Solarpanels pointing at wrong star (should be fixed) - Parts clip into terrain (known bug - kopernicus) For questions, feel free to post here or ask me on Discord. If you want to report a possible bug, please provide evidence (screenshot or (link to) logs). Keep in mind this mod is still growing, much more will be added and fixed. Requests, ignorant and hatefull behaviour will be ignored or reported. Special thx to @[email protected]@[email protected]@[email protected]@[email protected]@[email protected] [email protected][email protected] [email protected] @Shbibe @light - (list incomplete) Galactic Neighborhood™ and OPM™, the one and the only truely original mods that inspired me to make Galaxies Unbound™. - This mod is licensed by Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) If for any reason, I am no longer active on this forum, I request that this mod and its content shall remain untouched and dies in silence.
  3. Klaniakea Supercluster A wacky mod unfitting of the time and setting of the original intent. Coming sometime. Dunno when. The Overview: Klaniakea Supercluster is a mod similar to that of Galaxies Unbound, adding multiple stellar bodies and planets for you to explore. Originally planned to fit the time and setting and lore of Homeworld, creative freedoms have taken over really and it's just a wacky-enjoy itself mod. This mod is currently in early development, and I will take suggestions/feedback. Compatibility (Not so important yet, mod isn't out yet.) Incompatibility Screenshots: https://imgur.com/a/HYZcvaK (Check back occasionally, I will be updating this! Also also, stuff is heavy WIP so it might not be great as of now, please be nice lol) Credits/Thanks @Caps Lock Sunflare used, sorry for the 2nd ping lol @Bendy Snowball Inspiration/Ideas for planets, and just being cool overall The Kopernicus Discord Server - Being a great help to me. I can't list all the names individually, but thanks y'all. @TheOrios Making the logo Discord (Updates can be found here!) https://discord.gg/4RMpK5jN5P License: CC-BY-NC-ND 4.0 Roadmap (still being updated): https://docs.google.com/document/d/1l3_087MdZ6YWFefKqZuda4Fw8VaUYv1PR-i4fVag6T4/edit?usp=sharing Downloads: Soon Alpha testing is open, fill this form out for testing/suggestions. Suggestions posted incorrectly (forum page) will likely be ignored. https://docs.google.com/forms/d/1ZizGYwUeGOHp_fqlCoWfjZShmmm-UevzWJue-tys2tY/edit
  4. Technology has brought the kerbals far, but has not brought them a new home. Instead, it has destroyed their home, and forced all kerbals to move onto a singular habitation ring. After thoroughly looking through old data, they reluctantly chose Dominion, a dead planet in a dead star system, to be their new settlement. Upon landing it was immediately noted that the atmospheric oxygen levels were perfect for Kerbal life. Dominion reached a population higher than Kerbin's and every previous colony combined. It was a golden age for kerbals, but all good things must come to an end, and unfortunately death is a repeating trend in this strange system. What is Trilogy? System concept art (Original concept map only) Planets: Credits: @Caps Lock - Helped with configs and taught me almost everything I know @WarriorSabe - Helped with ring texturing and config nodes @DeltaDizzy - Helped with minor changes (atmosphereFromGround) @Hpl - Helped with a number of minor changes and fixes @RJVB09 - Shared PQS mods to the Kopernicus server for me to use @Maple Kerman - Helped with a number of minor changes and fixes @Livaco - Helped with config reformatting and a number of minor changes and fixes (Seriously, Livaco if you're reading this you are an actual god) @BobTheKerbal - Gaseous Giganticus retextures and cloud textures Other people in the Kopernicus server helped too! Discord for development updates: https://discord.gg/Q6bpBARpXp This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0)
  5. Hello all! I have just completed building the ship Hail Mary from Mr. Weir's latest novel. Now, obviously there are some inaccuracies, one of the most glaring of which I will detail below. (!SPOILERS TO FOLLOW!) The ship in the novel was powered by an alien micro-organism called Astrophage, emitting infrared light at the 25.984 micron frequency. To simulate this I have simply included a transmission module from KSP's interstellar extended mod (henceforth referred to as KSP I-E) in my engine module which was incorporated in the config file of one of their lasers. Then, I added in a new resource labeled "Astrophage", with the approximate density of a cell (even more spoilers; in Weir's book a huge panspermia event occurred at Tau Ceti which means that all living organisms have the same rough properties and hence, same structures.) I then incorporated this new resource into the fuel tanks provided by KSP I-E, and voila! I now added the fuel tanks to fit the correct volume as specified by Weir. Except... not really. For some reason the fuel tanks only hold about 900 tons of fuel as opposed to the 2,000 they should. Despite following Weir's details as closely as I could ("largest diameter they could launch was about 4 meters... three fuel tanks side by side... estimate they take up about 75 percent of the ship's volume), I find that Astrophage has to be either too dense to be a reasonable cell or, more likely, I have messed the proportions up. With all that ranting out of the way, I will below post Mr. Weir's Hail Mary specifications as opposed to my vessel. Weir's ship specifications: Dry mass 100 tons, wet mass 2100 tons, delta-v 0.92c (acceleration to and deceleration from), 3 crew, induced comas, "a few months" of food supplies, 125m^3 internal habitable volume, ~500m^3 total volume My adaptation's specifications: Dry mass 104 tons, wet mass 1012 tons, delta-v not yet measured accurately due to time, DeepFreeze chambers (which Weir unfortunately explicitly said DO NOT EXIST on his ship.. grr.. are there any other mods that can simulate reduced consumption of resources while not eliminating it completely?), 70m^3 internal volume, 7 months of air and ~4 months of food/water for 3 crew. More details to follow on the layout shortly. Thank you all for your time reading this, and I welcome any feedback or input from any fellow readers to try to improve the design replication!
  6. [KSP 1.8.1-1.11.X] (V0.4.1) Interstellar Technologies [Antimatter Catalyzed Fusion Engine Powered Interstellar Spacecraft - Kepler] An Interstellar Propulsion System mod, made by Kepler- At long last, after months of hard work practicing modeling, and after finally unlocking the secrets to textures, The mod is finally released. This parts pack will be used to expand from the mod Kerbal Space Program Interstellar Extended. Those parts are extremely imbalanced with going around the stock system. The engines are made off the base of the KSPI-E engines' statistics, [DEPENDENCIES] All of the required mods for Interstellar Technologies to function properly is now in the main mod folder. Note that the KSPI-E folder is stripped of some of it's parts, due to complaints of complexity of KSPI-E. [RECOMMENDATIONS] Those are recommendations to download to play with the mod. They are NOT required. - Far Future Technologies - TUFX - MEV Heavy Industries - Galaxies Unbound - A Stellar Odyssey - Interstellar Extended (The whole pack in order to get all the parts) - Near Future Mods by Nertea - Singularity (For Galaxies Unbound) The parts pack will be updated quickly, releases will be *quick*. I will be available in the KSPI-E discord server and the Galaxies Unbound discord server, please @ Kepler (No spacing) to make suggestions for future changes. Special thanks to @Cyne for helping me with learning to texture models. [Some of the Parts include...] - Daedalus Inertial Confinement Fusion Drive (v.0.1.0) - Antimatter Catalyzed Fusion Drive (v.0.1.0) - Kugelblitz Drive (Black hole drive) (v.0.1.0) - Laser Core Antimatter Drive (v0.1.0) - Multi Mode Interstellar Afterburning fusion drive (v0.1.1) - Multi Mode SSTO Fusion Engine (v0.1.6) - TRIGA Core Static/Pulsed Trimodal Nuclear Thermal Rocket (0.1.7) - "Coaxial" SSTO Fusion Engine (0.1.7) And so much more as the mod updates! [SCREENSHOTS] [DOWNLOAD] Primary (SpaceDock): https://spacedock.info/mod/2674/Interstellar Technologies - A KSPI-E Expansion For Additional Bugfixes and all (Probably mostly for science mode and that) please contact me through Discord through the KSPI-E or the GU discord server. The mod uses the CC BY-NC-SA License.
  7. My greatest creation to date. Welcome to Flamed Out. What is Flamed Out? What planets does this add? Screenshots Future plans Known bugs REQUIRES: Kopernicus: KopernicusExpansion: EVE (WORK IN PROGRESS, MAY BE BUGGY FOR RELEASE 1.0): Singularity: This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
  8. The result of overworking myself. Heliocentric Presents: Flamed Out. What is flamed out? What planets does this add? Screenshots When will it be released? Discord servers to join for updates: https://discord.gg/Q6bpBARpXp (Personal modding server) https://discordapp.com/invite/XmVp23s (Kopernicus server, check #helio-mods for frequent updates)
  9. The Challenge: Plant a flag on this planet, Proxima Centauri! Its the nearest real possibly habitable planet located near Alpha Centauri, about 4 lightyears distance which is made accessible by Alternatively use Centauri Dreams Updated to: https://www.dropbox.com/s/spyd3qnc6ppnocn/CentauriDreams.zip?dl=0 Although Alpha Centauri is our closest neirbour, traveling 4 light years though the interstellar medium might be further than you think The main constraint would be that FTL drives are not allowed, but you are allowed to use any slower than light (STL) engine from KSPI Extended, Far Future or Photon Sailor If you want to chat about the Interstellar challange you can do it at our KSP Interstellar Discord Server like KSPI-E Daedalus engine and/or magnetic nozzle. Here is an simple example : Here is a more advanced example For more info see: The alternative, travel by photon sail Preferred method of proof would be video. The preferred method of win is to be the fastest, but style also plays a large role Entry Player Proof Duration Max Speed Launch Mass Interstellar Dry Mass Interstellar Wet Mass Part count Cost DeltaV 3-1-2017 @Nansuchao youtube 690 y ? 61.152 t 129 t 439 t 161 41.963.000 ? 5-3-2017 @superdavekerman imgur 299 y 330d 1.027.340 m/s 9.068 t 26 t 108 t 129 13.361.780 2,767,705 3-4-2017 @proteasome imgur 69 y 91 d 4,164,000 m/s 4.123 t 550 t 4,123 t 68 1.236.987.000 0,165,752 9-12-2019 @pmborg youtube part 1, 2 ,3 26 y 23d 119,755,559 m/s 94.705 t 12,977 t 553,788 t 99 4,451,096,064 142 M 19-4-2021 @Zapataz youtube 17 y 149,000,000 m/s ? 59 t 80 t 25 11,543,300 ? unofficial entry: Slow Boats in style Another unofficial entry:
  10. This post cam way before KSP2. But. So we can prepare a challenge at first day KSP2 releases. This challenge will be to land on every planet and moon in KSP2. That means you have to visit every celestial body in one mission. This means you will need a ship capable of going to every celestial body in one mission. Rules: You can use multiple ships attached to a mothership. You can refuel. All of the ships or ship has to made at once. No multiple launches from the KERBOL SYSTEM. You have to place a flag on each planet or moon. (Expect Gas Giants) No mods. Try to do stock KSP2. Pictures, craft downloads, videos, and etc. (Evidence) No cheats. Science is allowed. Rovers are allowed to maximize science. Interactions with ships in Interstellar space is allowed. Interactions with colonies and other things outside of KERBOL SYSTEM is allowed. Contestents: Everyone is allowed to play and take part. In case of Cheating If someone think someone is cheating evidence from both sides to support their claim will be needed. Whoever provides the most convincing evidence will decided the fate of the challenge run. No Spam. Thank you and please enjoy this challenge. -Dr. Kerbal
  11. This is the most recent post on ToughSF: http://toughsf.blogspot.com/2020/11/nuclear-photon-rockets-flashlights-to.html Nuclear Photon Rockets: Flashlights to the Stars In this post, we will have a look at the concept of using a nuclear photon rocket for interstellar travel. They are an old concept that should theoretically be the ultimate form of relativistic propulsion. However, today they are unknown or unpopular. Why might that be the case? The image above is by David A. Hardy. The interstellar challenge The Daedalus starship. Interstellar travel is on a completely different level than interplanetary travel. The distances involved are orders of magnitudes greater. The shortest distance between stars is measured in trillions of kilometres. To face such distances, high velocities are required. The closest stars. A robotic probe might not mind spending several centuries to reach a destination. A human crew would want the trip done in their lifetime. Taking longer than that means running into technical and ethical trouble. The closest star to our Sun is Alpha Centauri A, currently sitting 40 trillion kilometres away, or 4.2 light-years. It would take 4.2 years to reach it when travelling at the speed of light. If we want to complete the trip within 20 years, we would have to travel at 21% of the speed of light. We also want to slow down at the destination. This means that we need a way to accelerate up to 21% of the speed of light, and then slow down back to zero - the deltaV sum is 42% of the speed of light. So how do we go that fast? The Falcon 9's Merlin rocket engines. Rockets are the space propulsion system we are most experienced with. There are many ways to measure a rocket’s performance, but only some are relevant to interstellar travel. Thrust, for example, is much less important when the trip will take many years; taking one month to accelerate instead of ten months is no longer a significant factor. Instead, let’s focus on exhaust velocity. Using the Tsiolkovsky rocket equation, we can work out the ratio between propellant and non-propellant masses of the rocket we are using. Mass Ratio = e^(DeltaV/Exhaust Velocity) DeltaV in m/s Exhaust Velocity in m/s A chemical rocket consuming oxygen and hydrogen propellants has an exhaust velocity of 4,500m/s. We find that for a chemical rocket to achieve a deltaV of 42% of the speed of light, we would need e^28000 kilograms of fuel for each kilogram of equipment, structure, engines and payload. That is a number that lies between 10^8428 and 10^13359. For comparison, the entire mass of the Universe is estimated to be 10^53 kg. Chemical rockets for relativistic travel are beyond impractical. The needle array of Enpulsion's IFM nano thruster. How about a rocket engine with a better exhaust velocity? Something like one of our most efficient ion thrusters? The Ultra-FEEP thruster that accelerates liquid indium to nearly 1,000 km/s is the best we can expect for now. It would still not be enough for relativistic velocities. To achieve a deltaV of 42% of the speed of light, we would need 6*10^55 kg of indium for each kilogram of dry mass. If you run the numbers yourself and lower the deltaV target, you would still find ridiculously high mass ratios being required. A deltaV target of just 2% of the speed of light, which would turn the trip to the nearest star an endeavour that spans about half a millennium, would still require a physics-breaking mass ratio of 10^579 from the chemical rocket, and a mass ratio of 453 from the Ultra-FEEP thruster. The lower value for the electric thruster seems much more reasonable, until you consider that indium is found at a concentration of 0.21 ppm in Earth’s crust. At our current output of 700 tons per year, a 1,000 ton dry mass craft would require at least seven centuries of indium production to fill its propellant tanks. To get away from these extreme figures, a logical decision would be to increase the exhaust velocity all the way to the maximum. The maximum is the speed of light. Photon Propulsion When your exhaust is light itself, the mass ratios required for relativistic velocities become decidedly modest. Light, more specifically photons, can be produced indefinitely ‘out of nothing’. In other words, if you heat up a surface, you can create a photon rocket that spontaneously produces and emits light without ‘running out’ of anything. All that is required is a power source. The more energetic the power source, the more photons that can be produced and the higher the photon rocket’s performance. The theory fits together neatly. The concept of using a nuclear reactor to heat up a surface so that it emits enough photons to produce appreciable thrust is at least 50 years old. Nuclear photon rockets could solve our problem of interstellar travel by harnessing the greatest sources of energy and utilizing the exhaust with the highest velocity. All the fuel they would ever need would be loaded up at departure, so they do not have to rely on the existence of any infrastructure at the destination or any assistance along the way. Perhaps they would have enough to return to us without having to refuel! However, ‘photon starships’ are not a popular idea today. They are not featured in NASA’s NIAC programs, nor are aerospace engineers dreaming up modern designs for them. What ‘catch’ has them relegated to relics of the past? Fission Photon Rocket A nuclear photon rocket from Boeing's PARSECS study. Let us start with the most familiar of nuclear energy sources: the fission reactor. A fission reaction produces about 80 TeraJoules for each kilogram of maximally enriched fuel. 95% of this energy is in the form of gamma rays or fission fragments; they can be blocked by a thick wall and converted into heat. About 5% leaks out in the form of neutrinos. This reduces the ‘useful’ energy density of fission fuel to 76 TJ/kg. In a typical reactor, the fuel is in solid form. Only a fraction of its potential 76 TJ/kg can be extracted in one fuel cycle. The products of fission, such as xenon-135 and samarium-149, remain trapped next to the fuel. These isotopes have a high neutron cross-section, which means that they trap and absorb the neutrons needed to sustain a fission reaction. Nuclear engineers consider these products to be ‘poisons’. If enough poisons accumulate in the fuel, the fission reaction cannot be sustained. The result is that a single fuel cycle achieves very low burnup of the fuel, which is the percentage of fissile fuel that has undergone fission. Typically, this is 1% to 5% of the total fuel load inside a reactor. On Earth, nuclear engineers deal with this problem by shutting down a reactor, extracting the slightly used fuel and sending it off for reprocessing. This involves removing the poisons, mixing in a small quantity of fresh fuel, and then returning it all to the reactor. A spaceship does not have the luxury of regularly halting its reactor while also lugging around a nuclear fuel reprocessing facility. Instead, we need to use a type of reactor that grants high burnup with no reprocessing necessary. The best option seems to be a gas-core nuclear reactor. In this high temperature design, the fuel and poisons are in a gas phase. It becomes easy to filter out the poisons as they are chemically very different from the fuel. We can have the fuel circulate within the core for as long as needed to achieve near 100% burnup. With the burnup problem solved, we can convert those 76 TJ/kg into heat. From a physics perspective, only about 0.77 grams of matter in a kilogram of fissile fuel becomes energy. This leaves us with 999.23 grams of waste after consuming the fuel. With no further use for it, we eject it to lighten the spacecraft. Imagine a nuclear starship designed specifically to make our next calculations easier. It consumes 1 kg of fuel per second. The average power output is 76 Terawatts. Thrust = 2 * Power/ Exhaust Velocity Thrust will be given in Newtons Power is in Watts Exhaust Velocity in m/s Those 76 Terawatts should result in 506.6 kiloNewtons of thrust. With a 95% efficient photon emitter, we gain a real thrust of 481.3 kN. After producing this thrust, we eject 999.25 grams of waste. Effective Exhaust Velocity = Thrust / Mass Rate Effective Exhaust Velocity will be given in m/s Thrust is in Newtons Mass Rate is in kg/s The ‘effective exhaust velocity’ based on this thrust and the amount of matter being ejected is actually 481.7 km/s. The critical point we make here is that while the thrust comes from photons travelling at the speed of light, exhaust velocity calculations must take into account all the masses being ejected. So what can a fission photon rocket do with an effective exhaust velocity of 481.7 km/s? It certainly cannot reach our desired deltaV. Achieving 42% of the speed of light would require a mass ratio of 10^113. Unless we have access to multiple Universes filled with highly enriched fissile fuel, this is impractical. Even with an extraordinary feat of engineering so that we could load a starship with 100 kg of nuclear fuel for each 1 kg of dry mass (and not have it immediately go critical), the achievable deltaV is only 2,218 km/s or 0.74% of the speed of light. Fusion Photon Rocket What if we used the better nuclear rocket: the fusion rocket? There are many different fusion reactions involving different fuels, but we are interested in those that provide the highest energy density. Proton-proton fusion provides a whopping 664 TJ/kg. However, it is very slow, taking thousands of years to complete, and it is not realistic to ever expect to take place outside of stellar cores. Next down the list is Deuterium-Helium3. About 353 TJ/kg is on tap. We won’t dive into the details of the various reactor designs that could be used, but suffice to say that near-complete burnup of fusion fuels is possible, and all the energy released can be converted into heat. If we compare the mass of the Deuterium and Helium 3 before fusing, with the mass of the helium and proton particles after fusion, we notice that 0.39% of the mass is missing. That is the percentage of mass converted into pure energy. It is a much greater percentage than nuclear fissions’ 0.077%. The list of particles involved in fusion reactions, with their exact masses. Let’s repeat the previous calculation for the effective exhaust velocity of a nuclear photon rocket. 1 kg/s of fusion fuels are consumed, for a power output of 353 TW. This produces 2,235.6 kN of thrust out of a 95% efficient emitter. We expel 996.1 grams per second of waste, so the effective exhaust velocity is 2,244.4 km/s. This is nearly five times than a fission photon rocket’s effective exhaust velocity. However, this is still not enough. Our desired deltaV of 42% of the speed of light comes at the cost of a mass ratio of 2.4*10^24. While we could gather enough galaxies together to fuel our fusion photon rocket, we want something more practical. The reality is that a plausible fusion photon rocket with a mass ratio of 100 would only have a deltaV of 10,335 km/s or 3.4% of the speed of light. Barely enough for a multi-century generation ship to cross the stars and certainly not enough for travel within a lifetime. Staging the fusion rocket will not help very much. Also notable is the fact that an effective exhaust velocity of 3.4% of the speed of light is actually lower than the exhaust velocity of direct drive fusion propulsion, where charged particles are directly released into space through a magnetic nozzle. DHe3 releases a 3.6 MeV helium ion and a 14.7 MeV proton. Their averaged velocity is 7% of the speed of light. A photon rocket is a very inefficient use of fusion energy. Antimatter Photon Rocket The ultimate fuel should give the ultimate performance. Nothing beats antimatter! There are many types of antimatter. There are antielectrons, antiprotons, antineutrons and their combined form, anti-atoms like antihydrogen. Antielectrons annihilate with regular electrons in a ‘clean’ annihilation reaction that produces high energy gamma rays and nothing else. They are however the hardest type to store. Antiprotons are much easier to store, especially in the form of frozen antihydrogen ice. The downside is that their annihilation is ‘messy’, as it releases a plethora of products. With solid shielding, enough of the energy of those multiple products can be absorbed and converted into heat. We set the efficiency at 85%. Each kilogram of antimatter contains a potential for 90,000 Terajoules of energy. It must be matched by another kilogram of regular matter, so the average energy density is halved to 45,000 TJ/kg. As we only capture 85% of that amount, the useful energy density is 38,250 TJ/kg. If we consume one kilogram of antimatter/matter mix per second, we would have a drive power of 38,250 TW. A realistic emitter would convert this into 242,250 kN of photon thrust. The effective exhaust velocity is 242,250 km/s or 81% of the speed of light. With such a high exhaust velocity, an antimatter photon rocket would be able to achieve the relativistic velocities we desire. A deltaV of 42% of the speed of light would only require a mass ratio of 1.68. That’s 0.68 kg of antimatter/matter mix for each 1 kg of rocket dry mass. We might even be able to go much faster with high mass ratios; travel times to the stars in single-digit years seems possible. However, antimatter is exceedingly difficult to collect or create. A mass ratio that seems acceptable for a conventional rocket would actually imply an unreasonable amount of antimatter. Existing accelerator facilities, if tasked with solely producing antimatter, would require about 3.6 ZettaJoules to produce 1 kilogram of antimatter. That’s 3,600,000,000 TeraJoules, equivalent to 286 times the total yield of all nuclear bombs today (1.25*10^19 J), or the total output of the United States’ electrical grid (1.5*10^19 J) for the next 240 years. If we were very serious about producing large quantities of antimatter, we could design a superbly optimized antimatter production facility, with very efficient antimatter capture mechanisms. Production efficiency can be increased to 0.025%. This means that 1 kg of antimatter would require ‘only’ 360,000 TJ to manufacture. An antimatter photon starship would ‘just’ need the combined output of all humanity (8*10^19 J/yr) for the next couple of millennia to fill it up. An antimatter production facility. In practice, the awesome performance of antimatter propulsion would be reserved for civilizations higher up the Kardashev Scale. Verdict and Consequences All the calculations so far have assumed nearly perfect use of the energy released by fission, fusion or antimatter reactions. We have also ignored the massive complications that arise from trying to handle the power of those reactions. Despite this best case scenario, nuclear photon rockets do not seem to be up to the task of rapid interstellar travel. Fission and fusion power are just not energy dense enough. Antimatter is far too difficult to produce in huge quantities. The ‘catch’ is that physics is not kind to photon propulsion. For this reason, this sort of starship will remain a bottom-drawer concept for the foreseeable future. What effect does that conclusion have? If we want to use rockets, we must accept that interstellar travel will be slow. Other techniques or technologies have to be employed to make crossings that last centuries. Cryogenic hibernation, life extension or digitizing the mind can enable the original crew to survive that long; generation ships or embryo seeding can allow another group of people to arrive at the destination. Robert L. Forward's Laser-propelled lightsails. If we instead want interstellar travel done quickly, we cannot rely on rockets. All the popular methods for interstellar travel depend on non-rocket propulsion, such as Robert L. Forward’s massive laser-propelled sails or the ‘bomb-tracks’ discussed in a previous post. The energy cost of relativistic travel is no longer derived from a fuel carried onboard a starship, but from an external source. This external source takes the form of large infrastructure projects and preparations that require many years to complete; we trade away the flexibility and autonomy of rockets to gain huge speed, efficiency and cost advantages. A consequence of non-rocket propulsion is that interstellar travel cannot be a whimsical affair. It has to be planned a long time in advance (which has implications for the stability of the civilization organizing it all) and it would be evident to all observers at the departure and destination what is going on. No ‘secret’ missions to other stars! Of course, a scifi writer might not like the sound of that. Their options lie in more exotic types of rockets, more advanced civilizations or speculative science. Examples of exotic rockets include a starship powered by a rotating black hole, where matter is converted into energy at 42% efficiency (an effective exhaust velocity of up to 252,000 km/s or 84% of the speed of light) or a Ram-Augmented Interstellar Ramjet, where the thin interstellar medium is added to the exhaust of a fusion reactor for a greatly improved effective exhaust velocity. More advanced civilizations handle enough energy to be able to produce large quantities of antimatter, overcoming the main difficulty with this fantastic fuel. Speculative science opens up the possibility of using ‘quark nuggets’ to rapidly and easily create antimatter, as well as wormholes and Alcubierre warp drives. Though, we must warn you, that these different options might be more troublesome than photon rockets!
  12. So I was thinking about how the devs were going to approach the problem of new solar systems. As we all know by now, new solar systems are a major part of KSP2. It is the main reason behind the new parts and even the game. So how are the devs going to handle new solar systems? I came up with two ideas (feel free to suggest more): 1. Hand crafted planets If you are like me, then this is the first idea you had when you heard the words "interstellar travel". But this would be insanely limiting. First the devs would have to make a sun, planet, any moons and all the other planets and extra bits. But inspiration flags and the work that they are doing to make the stock planets look amazing can't be easy. Also KSP is a game of discovery and imagination. While KSP has all the stock planets named specific names, if you have hundreds of exoplanets, you will run out of names, and the community will want different names. If a planet is hand crafted, the devs will want to make the name themselves. 2. Randomly generated planets After hearing about No Man Sky and all the problems with that, I noticed something: I immediately realized how awesome KSP2 would be if the exoplanets were procedurally generated! You could fly around to the new system, name all the planets with cool names that you came up with (this is the planet of MOAR BOOSTERS in the Jebolar system), and you would be the only person with those planets. This would also take a huge load off the developers as they could just set this up and let people play. They could put in special features like canyons and caves, and let the game engine do the rest. This would encourage you to do interstellar travel, as no one has ever set foot on that planet. With the stock planets, lots of people have landed on Eeloo, and you can just look up a picture of what it looks like. But you would be discovering new landscapes! Many modern video games do this. Minecraft is the obvious one, World of Warcraft, No Man Sky, <--- Example of Procedurally generated terrain So in conclusion: Hand Crafted Planets Pros- More of a Kerbolar system feel Greater possibility of Easter Eggs and cool terrain More manageable amount Cons- Amount of dev time needed Inspiration may flag, resulting in boring planets/names Less exoplanets/solar systems Procedurally generated planets Pros - Much more exoplanets The ability to name them More terrain to explore Cons - Less of a 'homemade' feel that the stock planets have More CPU intensive (if you have a hundred planets) Less of a connect with fellow KSP2 players (its more difficult to make a post about your visit to JebBillBobVal if no-one else has that planet)
  13. HI! In the forum we ask and try to answer questions about KSP2? What planets will there be? Is Minmus gonna have ice craem? Will Jeb return? Who knows! Will Jeb, Bill, and Bob return to KSP2???
  14. THE REACH: INTERSTELLAR Creative Commons Attribution 4.0 International License The Reach Interstellar is an interstellar based planet pack for more advanced players. The system sits at about two kerbal light years distance. The mod is meant to be compatible with several system replacer mods, and with any mod in the Interstellar Consortium. The system in question features 16 landable objects, and a red dwarf binary in the centre. Original mod: https://forum.kerbalspaceprogram.com/index.php?/topic/193279-181-the-reach-planet-pack/&tab=comments#comment-3773652 Screenshots (By RJVB09): Planet List: Dowload on spacedock: https://spacedock.info/mod/2488/The Reach: Interstellar Credits: @RJVB09 for converting the textures to a less performance-heavy format, making the aurorae @Thomas P. for maintaining Kopernicus up to the update of this mod, no planets without him
  15. Hey all, How do you set up engines such as the ELF Plasma Thruster in KSP InterstellarFuelSwitch in 1.8.1? I've tried attaching it directly to the Molten Salt Reactor and then also the Open Cycle Gas Core Fission Reactor, but it can never go above 0.00001 kN of thrust. I'm obviously doing something wrong, but all the tutorials are so out of date. What makes it even more confusing is that when I deploy the Gigantor XL Solar Panels, the engine can suddenly produce up to 0.00800 kN out of nowhere. Basically, could someone please explain to me how to set up plasma, fusion, and thermal engines in this mod? I can't get anywhere with it. Thanks
  16. KSP: 1.8 Windows 64bit Problem: I am having repeated index errors after installing GPP secondary to my save. Seems to be a comnet problem, perhaps only associated with particular parts. I haven't been able to figure out what exactly triggers it but sometimes on the launchpad I will lose all comnet access and will be getting constant errors index errors until I fully quit and restart. Mods installed: Koperncius GPP Secondary OPP Interstellar Extended REstock Log: Log
  17. I have several vessels with the Orbital assembly docking ports from KSP interstellar extended. Recently, however, these docking ports have lost the ability to undock from other vessels/payloads. I hit undock in the context menu, the undock button disappears and nothing undocks. I've tried looking into the save file data, but I don't know what I'm doing or what I'm looking for. Can anyone help?
  18. The Bahamuto Science Drill certainly is a very handy Part for Probes. Unfortunately that Thing is MASSIVE and doesn't really fit onto most Probe Cores; not to mention the RoveMate Rover Body (I like Rovers). It can't be scaled down by TweakScale either, what would make Sense in my Opinion since a lot of Probes carry Experiments like that-just reasonably sized. I know that the Interstellar Mod includes this Drill in a tweakable and rerunnable Version but I am a bit reluctant to install Interstellar now because it wrecks the Dawn Engine which I am using in some Probes that would the become useless. So I've been trying a bit to either way make the "stock" Bahamuto Drill tweakable or "extract" it from Interstellar. None of that really worked. I then came up with the Idea to add this Sample Extraction Function to the Drill-O-Matic (Junior of course) stock Parts instead. So here is my Question: Can I just copy the "Science Module"-Section from the Bahamuto to the Stock Drills .cfg-Files or is there anything else I have to keep in Mind? I did some minor Tweaks to the Game Files before, like increasing the Stress Tolerance of Wheels after they kept mysteriously breaking evenwithout much Stress on Eve, un-hiding the Mk 1-2 Pod from the Tech Tree or increasing the Mass of some OP lightweight Parts (Big Khleb...). But I wasn't succesful at adding "new" functions to Parts, as said above.
  19. Hello, UranianBlue here from Delta Sigma Mods!! I have been starting a new project that will create extra star systems. Because of the extreme distances, I recommend using the Interstellar Extended mod. Also, if you have not seen my Heidon Mod, try it out! Pics will come soon. Release will be in May or June. Post your suggestions down here; this is your chance to alter the mod to your preferences.
  20. So, I love planet packs. I love exploring new worlds, establishing communications, and setting up colonies. I love habitable worlds. I love strange and interesting new worlds. I appreciate some fine little dust balls, and I enjoy gazing at the majesty of real purdy gas giants. But my problem has always been that new planet packs might add a half dozen (or more) new planets, and I only really want a couple of them. Some huge packs only add a handful I REALLY love, and many packs put new planets so far away from Kerbin that It would take ten thousand Kerbal lifetimes to get there, or leave the solar system so chaotically arranged that planets actually collide (or, you know... just kind of.. clip through each other... like wall hacks.) Some packs use their own textures, some reference CTTP, or their own textures. Sometimes, the same exact artwork is loaded in multiple different folders, saturating my system memory with three instances of the same high-def picture of some lovely, lovely dirt. So I built my own solar system in an attempt to capture exactly what I want in my little sandbox. I call it "Kerbal Impossible Solar System." I wanted many planets, and even new systems to explore. I wanted a veritable smorgasbord of habitable planets to colonize, recourse rich bodies to exploit, dangerous worlds for Jeb to go give his life for the cause on. Well, I've filled it up with planets that many of the very talented modders have created and shared with us. I've combined and organized all the extra resources that they use, like textures and decals, and such to reduce the memory overhead. I've adjusted the science values to be more appropriate, and I'm in the process of creating descriptions and appropriating mining resources. After that, I'll be working on setting up EVE atmospheres and Scatterer configs. Maybe I'll add mod support for things like research bodies, if I'm feeling especially willing to punish myself. At this point, I've put a pretty large amount of work into this project, and I would share it so you can see where I'm at so far... I totally would... But, I've stolen, BLATANTLY STOLEN the fine work of MANY of the modders in this community. I haven't asked anyone for permission to use their planets in a pack yet, because I wasn't originally planning on uploading this. While I am sure *some* of the victims of my wanton theft would be happy to share their colormaps, heightmaps, biome maps, and Normals, others, I am sure, would not allow me to make use of their artwork and files. I'll start asking some of the folks that I have... erm, "Borrowed from" and see if they mind lending the fruits of their labors to this ridiculous enterprise, but I don't suspect that every planet artist will be on board to have their products so shamelessly exploited. We shall see. So, I guess I'm just kind of posting, first of all, to test the waters and see if this is a project that would generate any real interest. Those in search of realism obviously wouldn't be interested, but there are plenty of other packs that strive for realism. This pack seeks to maximize the things that an intrepid explorer, a true capitalist... a conquest minded imperialist, would appreciate. Even just people who want to get out and explore, don't really care where they end up, and don't want to have to worry about transfer windows, or plan gravity assists Kerbin years ahead of time. And secondly, to ask if anyone has planets that I may use? Maybe you are the creator of a popular planet pack, and would be happy to let me pilfer your artstuffs. Maybe you've made planets in the past, but never found a place to put them to good use. Maybe you are just really good with GIMP and like making planets, and wouldn't mind helping me fill in the gaps with some custom requests. Anything helps. (I can't actually draw / draft planets myself, so I really am totally dependent on the charity of this community if you guys want to see this come into fruition. Of course, credit will be given where it is due.
  21. From my own experience, I know that Interstellar Extended can be quite complicated to figure out, so I made this post to minimise the fuss. In the KSP @FreeThinker's Interstellar Extended mod, there is a number of very cool futuristic parts, and sometimes it can get quite hard to find out how to best use those parts. One of the best examples of such a feature is the Acullbierre drive (a.k.a the Warp Drive) As most parts in IE and in KSP in general, the Acullbierre drive requires a few more parts to function. To fully understand how a warp drive functions, we are going to use an example ship I’ve built. It’s parts fall into these main categories: -Means of control (Duh) - Reactor (mega joules generator) - Secondary power source (mega joules are considered a different resource, so it is best that there is at least a solar panel on the ship) -Acullbierre Drive -Radiators (an absolute MUST for almost any system in IE) Secondary Propulsion system (When exiting warp, you will be going at the exact speed you left at, so you will want to make some adjustments so that you don’t fall into or escape the planet you’re going after) With most parts being pretty self explanatory, there are two features I need to address: The drive and the reactor. Reactors are parts that generate electricity. Some do more than others but they may also require more resources or last less long. Make sure to read the description of them to make sure your ship has the required resources. As well as that, many reactors have different configurations, meaning that some can utilize different configurations of resources. These are different for every reactor, so make sure you choose the one that suits you best. (Most reactors can be fitted with an extra “thermal” reactor. Those utilize the excess heat your reactor/Acullbierre drive produce and repurpose it as electricity. They can go great with reactors as they increase the power output greatly) Acullbierre drive comes in three different shapes: small, large and compact. These differ in the amount of mass they can transport, so make sure you have the correct one (they can also stack BTW) When everything is set up and the reactors are working, go to the drive menu (via right click) to start the drive. CAUTION: this act will generate a lot of excess heat, so be sure you either have enough radiators or your actions are quick!!! When the reactor is charged (the exotic matter bar is full) select your destination on map screen, point there and turn the warp drive on! Tip: one of the readings on the drive menu is the current warp speed. You can increase and decrease that with the appropriate buttons on the menu. Make sure you you slow down quickly enough though!
  22. MODS: KSPIE, KJR, Space Y, B9+legacy packs, SVE, scatterer, navhud, kerbal engineer, procedural parts, procedural wing, nebula decals, kerbal foundries continued, simple construction, TAC fuel ballancer, TAC life support, hangar extender, distant object enhancer, DiRT (for changing the skybox get it!)
  23. I have been studying concepts for missions, and I think I might have one. It is basically an expansion upon the idea of a Saturn atmospheric probe whose relay will escape the Solar System. As of yet, it is nameless, but I have some ideas for what it will be. The carrier-relay probe will have a wide-angle camera with color capabilities, and a narrow-angle camera with only B&W. This is similar to the Ralph-Lorri dichotomy on New Horizons. It may also have some other instruments from the Voyager probes, such as a magnetometer, radio receiver, UV spectrometer, etc. Finally, it will carry an atmospheric probe to descend into Saturn's atmosphere. It will be released not long before the Saturn flyby, and after the relay passes from the shadow, it will relay the data collected from the atmospheric probe, as well as data it may have collected as well. The carrier-relay would look like a mesh between Voyager, New Horizons, and Galileo (with the atmospheric probe), possibly. It would be launched in mid-2034, have a 1.7-year-long cruise phase to Jupiter, then take about 4 years to get to Saturn. After that, a Haumea flyby may be possible, given enough funding directed toward it. A couple of questions, however: Since it's on an escape trajectory from the Solar System, what cargo will it carry for aliens to find? Would it be feasible to have a camera embedded into the probe to take a picture of the Saturnian atmosphere? To get to Haumea, how close would the carrier-relay have to fly to Saturn? Would it be possible to make a mockup of it using RSS? (preferably both imgur photographs AND a youtube video) These are two possible trajectories I might use. They aren't necessary, but is instead a template or guideline. https://drive.google.com/open?id=14YrJYsIIzYcgSTCZa_DjR8acOjPp26Ks https://drive.google.com/open?id=1GF_xSTJa7mQ37aFmDcRsh06SYOPoPD0e Share your thoughts below.
  24. According to this video posted a few hours ago (complete with unnecessarily dramatic music ) by the Jet Propulsion Laboratory, Voyager 2 has crossed the heliopause and entered interstellar space, following Voyager 1 which passed this milestone in 2012. So, we now have two spacecraft beyond our solar system!
×
×
  • Create New...