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  • About me
    Sci-Fi writer
  • Location
    Setting course for Rocheworld
  • Interests
    Gloria in astra caput
    Lets head to the stars

    Writing, KSP (Duh), Spaceflight (Manned and Unmanned), Astrobiology, Habitable Exoplanets, Interplanetary colonization, Interstellar travel, Stranger things, and Gravity falls.

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  1. I wonder how it'll take to do all of them. Will they do up to 3 at a time after this, now that the first one was fine? Or keep doing one at a time for now?
  2. Honestly, that's kind of what I figured. That they would want to keep it around the same cost of a Falcon 9/Heavy to immediately start incentivizing customers moving to Starship instead. But below that, like a few tens of millions lower than a Falcon 9 wouldn't be good for recouping some of their costs as it moves from a developmental to an operational vehicle (if those kinds of costs are even potentially feasible for them in the near future). Did they talk about the cost of Raptor?
  3. Congratulations! Not sure if this is something you're looking for, and it's a pretty recent startup, but it's headed by a former JPL scientist, as well as other engineers, aerospace and otherwise. It's not directly related to space related applications, but the general idea of it could be adapted for destinations like Mars, where their idea is to make carbon capture into synthetic hydrocarbons economical with solar power. https://caseyhandmer.wordpress.com/2022/02/03/terraform-industries-whitepaper/ https://caseyhandmer.wordpress.com/2022/03/22/maximizing-resume-snr/ https://caseyhandmer.wordpress.com/2022/07/22/were-going-to-need-a-lot-of-solar-panels/
  4. Now waiting to see engine 1 installed on the core stage.
  5. Very much looking forward to this. Between Grace and Webb, exoplanet science is going to go pretty far. We won't find nearly as many planets as we did with Kepler, but we will gain a lot more knowledge on the ones we already found. And, hopefully, even the first tentative signs of life.
  6. Oh, I was thinking more along the lines of - you have a collection of smaller moons forming, and then a protoplanet in a similar orbit smacks into those, adding more material to the planet-moon system. Then you have questions like, how much was lost from colliding into the planet, or being flung out entirely? Was there a net increase? And what's the likelihood of a single large moon forming from that event (or in general with mostly the original material).
  7. "Candidate 1" is a potential planet around Alpha Centuari A in its habitable zone, that's between the size of Neptune and Saturn. I didn't know they were looking to get time scheduled on Webb to try and confirm it until I saw this article (though I wondered if they were going to). It didn't help that they made no mention of Alpha Centuari in the information page, just "closest stellar neighbor" https://www.inverse.com/science/alpha-centauri-planets-jwst https://www.stsci.edu/jwst/science-execution/program-information.html?id=1618 In terms of exomoons, it should be possible for gas giants of this size, or any, to form Mars-Earth sized moons, right? Maybe in some sort of even analogous to the hypothetical Earth-Theia collision.
  8. That may not be the case https://www.universetoday.com/152104/good-news-red-dwarfs-blast-their-superflares-out-the-poles-sparing-their-planets-from-destruction/ There's also several observation missions scheduled on JWST searching for atmospheres on red dwarf worlds, including several dedicated to TRAPPIST. And in cycle 1 GO, there's specifically one aimed at determining how common atmospheres are around their planets. "Tell Me How I’m Supposed To Breathe With No Air: Measuring the Prevalence and Diversity of M-Dwarf Planet Atmosphere." So JWST could be poised to show how potentially 'life friendly' red dwarves really are.
  9. So this is really all in the title, but what limitations and challenges are there to using methods like radial velocity to find more planets in the solar system, like planet x, or other major bodies that might be far from the sun? I know radial velocity relies on the Doppler shift of a star's light, so are we too close for it to work? Or do hypothetical Oort cloud planets have too weak of a pull to really be noticeable? Either because of their extremely long orbits or comparatively small masses. What needs to change to make it feasible, and would it be worth our time - or would it make more sense in the end to continue observing as we always have, and simply send up more telescopes to cover the sky? I was about to post this in questions that don't merit their own thread, but I figured this might.
  10. This looks really good https://www.nasa.gov/press-release/nasa-s-webb-reaches-alignment-milestone-optics-working-successfully
  11. Exoplanets can teach us a lot actually. There are only 8 (maybe 9) planets in the solar system, and they don't represent every arrangement for a solar system. In this case, from the Proxima Centuari system in general, we can start to get an idea of what planetary conditions are like around a red dwarf, from being too close (this planet), in the habitable zone (Proxima b), and being too far (Proxima c, if it exists). It's the closest star to us, and dim to boot, so our instruments will be ready to study it sooner than say, planets around sunlike stars. It's not monumental, but it's still a new interest of study. It also brings home how common planets must be in the universe if some of our nearest neighbors have several. Beyond that, regardless if planets are potentially habitable, exoplanet studies in general can teach us about: -Planetary formation studies at different points in a solar system's development -Worlds we don't see in our solar system, and their conditions (super-Earths, hot jupiters, binary gas giants, planets around binary stars, etc) -Different planetary conditions we don't see in our solar system often (like Titan's methane seas, what about other fluids?) -Planetary environments around different star types, and ages - what kind of differences are there between young and old worlds? -And yes, habitable planets are also a pretty important subject, which stars can life thrive around? How common is it? Could we stumble on unique biosignatures we've only theorized about? How early can life emerge? But those studies will be in tandem with general exoplanet discoveries, and could even help inform astronomers better when we find potentially habitable worlds. Like what atmosphere compositions are more likely to be natural, or biological? Iirc, oxygen was thought to be biological for a long time, but scientists proposed natural processes that could create a false positive. Learning how to distinguish between those will be important.
  12. Will they be using the neutral buoyancy center for this? I wonder when they'll set up their own astronaut corps and training center. All these missions seem like a precursor to doing that, but they'll eventually need their own place to train their own astronauts.
  13. Getting some reel footage now Idk, the beat almost reminds me of the song irresistible, but it's not quite right
  14. Wow, I'm really behind on things, when did the engines get covers? Are they there to prevent corrosion, or just to look nice?
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