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So we know that as of right now, Jool technically has ground you can land on. Well, what if the surface got it's own biomes and landmarks?

Hello everyone! I recently flew a Jool 5 mission that, as the title says, was done in one launch. Here's how it went. I'll be uploading the report in seven parts, with (hopefully) one per day, for each leg of the mission: from Kerbin to Jool (this one), one for each moon, and return to Kerbin. Part 1: Launch! We begin on the pad with this massive rocket - nicknamed the "Colossus" - that appears to be almost half fairing. I don't have either DLC, so Mammoth spam (Spammoth?) it is. The two boosters, connected to the core via fuel pipes, will get the rocket off the pad before separating and letting the core carry it to a suborbital trajectory. There's also an extra Vector that's been attached to the bottom of the core stage, because the TWR was far too low with only the Mammoth. All systems are nominal, staging triple-checked, and Val, Bill, and Bob are all on board. We are clear to launch. Liftoff! A fairly standard gravity turn. Booster separation! The core stage will carry us to a roughly 100km altitude. The core stage is empty now and the Rhino will take us to orbit and beyond. Our apoapsis is just above 100 km. Fairing deployed and the interplanetary craft is revealed! It has a small SSTO for Laythe, a two-stage Tylo lander that will refuel for Vall, and an ion lander for the two outer moons. A 350 m/s circularization burn puts us into LKO. Launch happened at a Jool transfer window, so we're able to plan our Kerbin escape burn immediately. Two staging events will happen during this burn - the Rhino engine and the lower liquid fuel tank will both be dropped. And here are those staging events now. Goodbye Kerbin! The crew plans a correction burn and Tylo gravity assist in deep space. We want our periapsis to be nice and close to Laythe's orbit, and the apoapsis not too far out. As you can see, this required a close scrape with Tylo. (the second maneuver there is only because KSP doesn't like to show my trajectory beyond Tylo's SOI when plotting an assist from Kerbin or interplanetary space unless I put a maneuver node in Tylo's SOI. I deleted it right after the correction burn.) Hello Jool! And hello Tylo, too! The aforementioned close scrape of Tylo. The crew will be getting much closer soon with that lander in the back, but for now the moon has done its job. Val, Bill, and Bob are safely captured around Jool. And with that, the crew is in a stable orbit around the green giant. This is all for today, but I'll be back tomorrow with what was arguably the most annoying part of the whole mission: the Laythe landing.

Goals: Primary Goal: Flyby of Jool and return to Kerbin Stretch Goal: Land on any of Jool's moons and return to Kerbin Jeb-Level Goal: Land on Tylo and return to Kerbin Val-Level Goal: Land on Tylo, Laythe and return to Kerbin No Cheating! Any submitted attempts with infinite propellant or any other cheats will not count! Prove your run is real! If you are going to submit an attempt of any of these goals, please prove that you are doing these, by showing screenshots of landings, flybys and entering spheres of influences. Thank you for complying, good luck :)

Send Val to vall To complete this goal, you will have to send Valentina Kerman to Vall (I got this one from the loading screen, I spend a lot of time there) Plant a pole on pol Goal is simple. send a kerbal to pol and plant a pole (flag pole) on pol! Laythe lazy Very relaxing, simply make a kerbal take a bath in laythes water. Rules: 1. You must not use cheats of any kind. 2. You must take a screenshot every time you enter and exit a sphere of influence, land on a body and when you launch/return to kerbin. 3. You must not kill any kerbals. 4. You must have fun! if you do not follow one or two of these rules, your mission will still count, but points will be deducted. Community Challenges Tylo low flyby Fly by Tylo as fast and low as you can - Superfluous J Bop on Bop This challenge has 2 parts to it. First, send a crewed lander to Bop and perform a hard landing. A hard landing is defined as anything greater than 2 m/s, but you should be aiming for as hard of a landing as possible. You know, you are trying to bop Bop (like landing a punch). The second part is to take that crew and get them on the surface and dancing around. Gotta have at least 3 Kerbals present to call this a party. - Scarecrow71

I decided to show off ksp2 to a friend of mine and he asked me to try flying into Jool. I was curious as well, so I built my ship and went on my way. Well, as I flew deep into the atmosphere, I randomly decided to try EVA. You know, for science. Umm, Bill's shuttle literally just... vanished, and he was left simply flying deeper and deeper into the atmosphere, as the sun fell behind the horizon and everything became entirely black. He flew for several minutes until... he simply LANDED??? I even placed a flag Something tells me this wasn't an intended feature...

I had a rocket set up for a duna mission but forgot to get a good transfer window, so I went to jool! I've barely done a manned Mun landing and am already getting to Jool. I'm freaking out right now. I don't do manned missions outside of Kerbin orbit, so this is unmanned, but I still feel really proud.

Is it even possible? The challenge is to create a rocket (or many rockets) that can get to Jool orbit, only using sepratrons! This is my first time doing a challenge, so things might be a bit weird. RULES: 1. Don't use exploits. 2. No RCS 3. Gravity assists are allowed, as long as you get to Jool. (suggest more please) Categories (points are a work in progress): Jool Orbit Unmanned: Get to Jool orbit using a probe (100 points) Jool Orbit Manned: Bring a kerbal to Jool orbit (200 points) Jool Probe Descent: Send a probe down into Jool's atmosphere once you reach Jool orbit (parachutes allowed) (175 points) Jool Probe Return: Send a probe to Jool orbit and back to Kerbin safely Jool Manned Return: Send a Kerbal to Jool orbit and back to Kerbin safely (300 points) Badges: (work in progress) Leaderboard: Jool Orbit Unmanned: N/A Jool Orbit Manned: N/A Jool Probe Descent: N/A Jool Probe Return: N/A Jool Manned Return: N/A Have Fun!

This post is reporting about my Jool mission, which will be assembled in 3 launches and primarily orbit Jool for a few months (Specific times will be layed out as the mission progresses). GameDate folder: the crafts: Prometheus 1 First of all, the launch vehicle that will deliver the modules of the ship is called "Prometheus 1". Its payload capacity is about 200t. The Rocket consists of 6 5 segment SRBs, 19 main sail LF/O engines on the first stage, and 8 Raptor Vacuum engines on the 2nd stage. The screenshots are taken of the baseline configuration which will launch most modules, however the propulsion module will be launched with a stretched upper stage. THe centrifuge module will be launched on a 10m diameter upper stage. Front View: Side View 1: Back View: Side View 2:

Is there a mod which changes the colour of jool into something which is more realistic and Jupiter like, e.g. orange and brown instead of green. I know that green is a very good colour for ksp (since kerbals are green anyway) but i'm looking for a mod which can add more realism to the stock planets without replacing them entirely. I found this thread but it is just an April fool's day joke. If someone can provide a link for a mod which is similar or send instructions on how to change jool. (I am running ksp v1.12.2 with quite a few part mods and some planet mods which don't change the stock system and extremely basic knowledge in coding for ksp.) If anyone can provide help, it would be most appreciated. Thanks in advance.

What should I know about planning for a Juno mission to Jool including all of the same gravity assists that the real thing did, in terms of the launch window? I have the spacecraft itself built, and it works well (probably too much delta-V...)

Here is my submission for @Dr. Kerbal's Jool Diver Challange Here is the Launch In orbit Burning for encounter Visual Contact The Dive Going Home Near Kerbin Reentry Mac is back! SCIENCE!!!!!!!!!!!! Challenge Here: Did this mode: A Bit of Air: Go under 200,000m but above 199,000m and return

THE JOOL DIVER CHALLNGE Let Us Explore the Depths of Jool NOTICE: MAKE SURE TO READ EVERYTHING! RULES ESPECIALLY AND RULE UPDATES BEOFRRE YOU BEGIN THIS CHALLENGE. Introduction: Hello. My name is @Dr. Kerbal. And this is the Jool Diver Challenge. In this challenge you have to go and explore the depths of Jool. Collect all the science and reports you can, and return home. You can go all the way down below 0m of Jool Sea Level or just scratch the atmosphere. This challenge has modes for everyone! From the hardcore pros to complete beginners! But before we start with the modes we are goin to go over some rules to prevent cheating. Because this challenge can be easily done with cheats. Rules: No mods that can affect the fuel in the craft. No HyperEdit. No part mods. Please stay stock. Kraken drives are allowed but only for altitudes under 10,000m. You cannot use Kraken drives for anything. All submissions submitted before 6/7/2021 12:00 PM will still be counted as not braking any rules. Part clipping is allowed You may do this challenge with other challenges Dont use the cheat menu You may bugs or glitches to you advantage to reach certain heights in Jool You can send a Kerbal (s) or a probe SSTOs are allowed Rockets are allowed No mods (expect for visual mods and for mode: Modifications of Kerbal ) The PROBE OR KERBAL(S) MUST RETURN! Docking is allowed Orbital assembly allowed in orbits lower than 100km at Kerbin and you may only launch 3 ships to build your craft. ISRU is allowed You may not launch your craft from the Mun Launch Pad (for consoles players). Please use launch pads that are on Kerbin. Please dont try to break the game. No dragg-lles crafts. All submissions before 7/6/2021 at 12:00 AM will still be accepted. Please do not use the KAL Controller Thrust Limit Extender bug. Rule Update Log: Note: All time is in military time. Go here for more info: http://militarytimechart.com/ RU1: You cannot use Kraken drives for anything. All submissions submitted before 6/7/2021 24:00 GMT will still be counted as not breaking any rules. This was changed because a suggestion and consideration has proven that using Kraken drives has defeated the point of the mission. RU2: Rule 14 was changed. Before it said this: Orbital assembly allowed in orbits lower than 200km at Kerbin. However it has now been decreased to 100km and you can only launch 3 ships for this orbital assembly. All submission submitted 6/10/2021 24:00 GMT will still be accepted. RU3: Added rule 16. You may not launch your craft from the Mun Launch Pad (for consoles players). Please use launch pads that are on Kerbin. All submissions that were launched for the Mun Launch Pad will be accepted if there were submitted earlier than 6/10/2021 24:00 GMT. RU4: Added rule 18. Please dont use the KAL Controller to increase the thrust of a craft. All submissions with this bug in use will be unaccepted. Modes: A Bit of Air: Go under 200,000m but above 199,000m and return A Green Gas: Go lower than 199,999m but above 150,000m and return I'm Falling! Help! : Go lower than 149,999m but above 100,000m and return Wish It was Eve: Go lower than 99,999m but above 40,000m and return Are You Crazy?!: Go lower than 39,999m but above 10,000m and return Joolian Madness: GO lower than 9,999m but above 0m and return Defy Physics: Go lower than 0m and return Fry My Brain!!!: Go lower than -250m and return Impossible!!!: Go lower than -1000m and return Modifications of Kerbal: Do this challenge with mods Submission: Well. You could do the mission but if you want credit please follow this guide on submission. To submit your submission please reply to this thread. Ping me. The give your mission a name and a description. Backstories are not required. Post some images or videos of your mission. Provide a craft file so I can make sure you did not cheat. Then state your mode in the corresponding colors listed in the mode list. That's it. If you need an example here: Badge No badge is available. But one will come soon. The first one who submits first will get a photo from their image or photos used. FAQ Frequently Asked Questions Can I have kerbal(s) sit on a chair during my travel? Yes. What is the maximum/minimum amount of kerbals I can bring? Infinite, as many as you want. What kinds of mods can I use? Only visual mods are allowed. Is there a part limit? No. There is no part limit. How much science do I have to get? Just run all the experiments (expect the seismometer). Can I use planet mods? No. But I will allow the Outer Planets Mod. Please contact me for any other though. How do I contact you? Message me through the KSP forums (Tip: Ping me through the forums message feature.) Is there an age limit? No. Anyone can participate in this challenge. What versions can I play this in? You can play this version from 0.8v to (CURRENT VERSION) Can I play this challenge in the DEMO version of KSP? No, the demo version doesn't have Jool added yet. Is there a maximum amount of submissions I can make? No. You can do this mission as many time you want. Can I make a video of this challenge and monetize it? Yes you can. I'm not sure why you would think I would say no. Can we use MechJeb? Um. This is a hard one. I would say no. I think MechJeb is automated so I will say no. Can we use MechJeb2? Um. This is a hard one. I would say no. I think MechJeb2 is automated so I will say no. Can we use Better TimeWarp? Yes. You can. Can I edit the save file to make it easier? No. You may not edit the planets orbits or position to make this challenge easier. Can I use visual mods? Yes you can. Mods like EVE, PARALAX, and Stock Planet Enhancements are allowed. How can I contact you about the rules and modes? Please message me through the forums and we can work something out. Is this possible? Some of it yes and some of them have never been attempted before (as of May 2021). So you might as well be the first. Where does Jool's atmosphere begins? It begins at 200,000 meters (or 200km) above sea level and 200,000 meters (or 200km) above terrain. What is "km"? The acronym "km" means kilometer. Conclusion I hope you enjoy this challenge. I wait to see the ideas you come up with. And the reason why I submitted this challenge is because. Kerbal Space Program the the community always break something once in a while. Making the impossible, possible. And lets revisit this old friends, and finally shows the Kraken who is boss! Like how we (humankind) went to the Moon. Not because it was easy. Because it was hard. "We choose to go to the Moon! We choose to go to the Moon in this decade and do other things, not because they are easy, but because they are hard." - John F. Kennedy Top Submissions: N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Other Cool Submissions @Austin_Kerman was the first to complete this challenge. The mode was A Green Gas: Go lower than 199,999m but above 150,000m and return and this submitter was the first to do it. It has shown not to break any rules and its clear. What an awesome submission. Very impressive and this shows that this is doable! @Admiral Fluffy Submitted this submission. The submitter dipped into Jool's atmosphere. Impressive still. And shows that anything's are possible. N/A N/A N/A N/A N/A N/A N/A N/A N/A = Not Applicable An image of Jool shining in its all mighty glory. Image made by @AnimatedK using Blender.

THIS THREAD WAS DUPLICATED! GO HERE TO SUBMIT OR SEE UP TO DATE RULES: https://forum.kerbalspaceprogram.com/index.php?/topic/202338-the-jool-diver-challenge-let-us-explore-the-depths-of-jool/ Introduction: Hello. My name is @Dr. Kerbal. And this is the Jool Diver Challenge. In this challenge you have to go and explore the depths of Jool. Collect all the science and reports you can, and return home. You can go all the way down below 0m of Jool Sea Level or just scratch the atmosphere. This challenge has modes for everyone! From the hardcore pros to complete beginners! But before we start with the modes we are goin to go over some rules to prevent cheating. Because this challenge can be easily done with cheats. Rules: No mods that can affect the fuel in the craft. No HyperEdit. No part mods. Please stay stock. Kraken drives are allowed but only for altitudes under 39,999m. You cannot use Kraken drives for interplanetary transfers. Part clipping is allowed You may do this challenge with other challenges Dont use the cheat menu Dont use bugs or glitches to you advantage You can send a Kerbal (s) or a probe SSTOs are allowed Rockets are allowed No mods (expect for visual mods) Modes: A Bit of Air: Go under 200,000m but above 199,000m and return A Green Gas: Go lower than 199,999m but above 150,000m and return I'm Falling! Help! : Go lower than 149,999m but above 100,000m and return Wish It was Eve: Go lower than 99,999m but above 40,000m and return Are You Crazy?!: Go lower than 39,999m but above 10,000m and return Joolian Madness: GO lower than 9,999m but above 0m and return Defy Physics: Go lower than 0m and return Fry My Brain!!!: Go lower than -250m and return Impossible!!!: Go lower than -1000m and return Submission: Well. You could do the mission but if you want credit please follow this guide on submission. To submit your submission please reply to this thread. Ping me. The give your mission a name and a description. Backstories are not required. Post some images or videos of your mission. Provide a craft file so I can make sure you did not cheat. Then state your mode in the corresponding colors listed in the mode list. That's it. If you need an example here: Conclusion I hope you enjoy this challenge. I wait to see the ideas you come up with. Top Submissions: N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Other Cool Submissions N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A = Not Applicable No Rights Reserved

Why didn't Jool become a hot Jupiter?

Pretty much as title. I'm designing a mission to Jool (my first time visiting that particular system despite having played for more than 2 years ) and I'm not exactly sure how much dV I should equip my probe with to be able to fly by each moon. I've consulted a dV map and have gathered that I'll need about 2km/s for the transfer, but it doesn't really tell me what I need for moving around the Jool system itself. Help would be appreciated (also, side question: the dV map tells me that I need ~3.3km/s to land a probe on Tylo from a flyby trajectory. Is this accurate or will I need more?)

For example, I want to fly to the Jool, land and take off from Laythe, Tylo, Vall, and Bop and back to the Kerbin. How much dV do I need?

How do I plan a gravity assist using Kerbin similarly to how Juno used Earth to get to Jupiter?

Veteran forumites may recall when my thread "Sights of Kidonia" was active. I managed to get a humongous mothership assembled in orbit for the Ultimate Jool-5 Challenge, filled with all manner of fun payloads and equipped with over 9000 m/s of delta-V, and then... I abandoned the project, the challenge left unmet once again. That was actually my third attempt to pull it off, the successor to "Julia" and an unnamed predecessor mothership. Each attempt had been grander than the last, and each attempt had failed (for the first, I was woefully short on delta-V; for the second, a KSP update to make the LV-N nuclear engine not consume oxidizer made the existing design unworkable; and for the third, I simply stopped playing KSP for over a year and didn't feel like trying to pick up where I left off, largely due once again to changes in the game). Only one thing to do: Try a FOURTH TIME! Officially at least. I did an undocumented minimal test run a while ago with an uncrewed ion probe just to reassure myself there was hope. And naturally I must continue the trend of making every new mothership dwarf all the previous ones... Teaser image showing the scale of the hull I designed alongside Kidonia. I'll be updating the thread as important milestones in the mission are reached.

This is how not to make a planned rocket, almost missed fuel! https://discord.gg/EJmz3kE

Getting back into KSP, I wanted to finish up my video series on my Tylo Rescue mission that started in 2017...of when I stranded Bill in 2014. Sorry, it's been a few years since the last update. Hope to finish the series within a couple of months. This started as a standard Mission Report, but after reading Kuzzter's wonderful Kerbfleet stories, I've been inspired to make it more of a narrative cinematic. So forgive the inclusion of the KSP GUI when it pops up. Note: This beta 0.235 game predates Bill, Bob and Jeb having dedicated roles as Engineer, Scientist and Pilot. So they may seem a bit "out of character." The 3 year old thread on this rescue mission.

I'm going to build a reusable ship to go to Jool and back, that has to have the ability to reenter LKO. My current design I'm working on has about 10,000 m/s and I'm wondering if that's enough for the mission it'll have to undertake.

The thing is this: I originally created a ship to "imitate" the Cassini-Huygens, the section that would land on Laythe I separated it successfully, I was about to enter Laythe but it just touched the atmosphere and went off to Jool. Nor did he fall into the latter but accelerated a lot. The discussion is, is this normal? I have not been able to calculate to what percentage of the speed of light this speed corresponds; Here an image.

Welcome! So, you want to go to Tylo. Alright, keep reading then. But know this: Tylo WILL BREAK YOU. Why? It's as big as Kerbin, just a little bit lower surface gravity, but HAS NO atmosphere. That means you will have to brake ALLLLLL the way down to the surface burning precious fuel. You will find yourself orbiting very low (10km or so) with speeds of 2400 m/s, and if your TWR is lower than 1 you will fail. Simply. This is not a tutorial, this will not teach you how to do transfers between planets, nor how to construct a rocket. It will just tell you what to expect before arriving there. Ok, here we go: What you need: Basics - Since it's a manned mission, you need at least a scientist, to reset the science stuff and collect more. A pilot and engineer are optional, if you have a good relay network, that is. - About 19000 Dv total, to ensure you don't get stranded in space. My rocket had 19500 and ended at Kerbin with 1000 left, but I used some gravity assists in the middle to economize fuel. -Nuclear engines. Highly recommended for space. NOT FOR LANDING - Some landing engine with good thrust. NOT FOR SPACE FARING. What you need: Specifics - A rover: Tylo might be treacherous, but provide a very good ground for rovers! It's fun, actually. It will behalve almost like in Kerbin. Beware of speeds surpasing 40 m/s! -A lander: DO.NOT.MAKE.YOUR.LANDER.TOO.VERTICAL (like i did) or it will fall!!! I made a ship bottle shaped and it was a pain in the ass to land. My horizontal speed was between 1 and 2 m/s and that was enough for it to tilt to one side when touching ground. A wide-base lander would have been much better suited. -An escape ship: Once the fun is over, you need to return. Calculate about 3300 Dv to get to orbit from Tylo's surface, to hopefully your mothership, space taxi or whatever is waiting to deliver bak home. What to have in mind: -Bring lots of solar panels or isotopes, Kerbol shines too softly on Tylo to gather enough energy. -Big wheels on the rover wont hurt. -Save before landing. Even close to the ground your engines will fire uncontrolably at full force, aproach as slowly as possible, and reduce your gimbal. Consider Tylo as a super Mun. -Use Jool, Laythe or even Tylo to assist your interplanetary brake. Actually, every Jool mission should make use of its satellites to help you. -Too insecure to try a Tylo mission? Go to Pol first, it's close by but much simpler to land (surface gravity a noch more than Gilly) Have Fun! (manned mission to Pol, SOON!)

The buoyant force works not only from the liquids, but also from the gases. So how possible is to build bases on the level of gases with density equal density of the base? The density of atmosphere at the sea level on the Earth and on the Kerbin ~ 1.25 kg/m3 . So if we need to reach the density level like water, we need to reach the depth when pressure is equal 800 atm. What do you think about this? I think that it's impossible, because pressure must be 80000000 kPa, but the pressure limit for all details is only 4000 kPa. And also it would be impossible to take off from this depth because pressure is unbelievable and I think that the atmosphere altitude would be about 1-3M KM. P.S. That was written by Russian student that study in 8 class. Maybe I don't know some physics laws.