Astronomy and space exploration

Discussion in 'General Discussion' started by eloyc, Apr 10, 2017.

  1. eloyc

    Veteran Regular

    Joined:
    Jan 23, 2009
    Messages:
    1,892
    Likes Received:
    1,081
    Interview with David Pares, Space Warp Dynamics' guy. He seems nice and I like how he explains things:


    The show may be a little off-putting because of that proUFO/paranormal looks/stench, but still...

    I would like this project to get a lot of support and investment, to see what they can really achieve.
     
  2. eloyc

    Veteran Regular

    Joined:
    Jan 23, 2009
    Messages:
    1,892
    Likes Received:
    1,081
    Hyperdetailed article about Mercury exploration and the next mission:
    http://astronomy.com/magazine/news/...-mission-will-image-mercury-like-never-before

    Another one:
    https://www.space.com/42176-mercury-mission-bepicolombo-launch-science.html
     
  3. nutball

    Veteran Subscriber

    Joined:
    Jan 10, 2003
    Messages:
    2,118
    Likes Received:
    439
    Location:
    en.gb.uk
    Bepi has been a long old slog. I knew people who were working on it, and that must be the best part of 20 years ago. It kind of became a standing joke "will Bepi ever fly?". I'm pretty sure it came close to being cancelled, maybe more than once.

    Good to see it on top of a rocket at last. I hope it survives the next seven years.
     
    eloyc and cheapchips like this.
  4. eloyc

    Veteran Regular

    Joined:
    Jan 23, 2009
    Messages:
    1,892
    Likes Received:
    1,081
    BepiColombo's launch:


    :)

    An article about the peculiar mechanism that will make the robotic arm of the lander in NASA's InSide mission work:
    https://www.space.com/42188-mars-insight-lander-robotic-arm-claw.html

    BTW and as you can read, the lander will arrive soon! :-D
     
    Lightman likes this.
  5. eloyc

    Veteran Regular

    Joined:
    Jan 23, 2009
    Messages:
    1,892
    Likes Received:
    1,081
    More BepiColombo stuff:
    https://www.space.com/42206-bepicolombo-mercury-mission-first-photo.html

    https://www.space.com/42205-why-its-hard-to-get-to-mercury-for-bepicolombo.html
    ------------------------------------------------------------

    And now let's remember that we sent a probe to Titan: :D
    http://astronomy.com/magazine/news/...how-we-landed-a-probe-on-another-planets-moon
     
    AlBran and Lightman like this.
  6. eloyc

    Veteran Regular

    Joined:
    Jan 23, 2009
    Messages:
    1,892
    Likes Received:
    1,081
    https://www.sciencedaily.com/releases/2018/10/181022171911.htm

    https://www.space.com/42214-purple-alien-life.html
     
    Silent_Buddha and Lightman like this.
  7. eloyc

    Veteran Regular

    Joined:
    Jan 23, 2009
    Messages:
    1,892
    Likes Received:
    1,081
    I'll always love NASA's conceptual mission, HAVOC:
    https://www.space.com/42162-nasa-humans-to-venus.html

    ...even though I don't think that will happen anytime soon.

    I think it's amazing to know that there's another place in our Solar System where we could just be there, out, without a spacesuit to protect us agains vacuum and radiation! :)
     
    Silent_Buddha and Lightman like this.
  8. AlBran

    AlBran Ferro-Fibrous
    Moderator Legend

    Joined:
    Feb 29, 2004
    Messages:
    20,583
    Likes Received:
    5,681
    Location:
    ಠ_ಠ
    Castle in the Sky pls. :p
     
    Silent_Buddha and eloyc like this.
  9. eloyc

    Veteran Regular

    Joined:
    Jan 23, 2009
    Messages:
    1,892
    Likes Received:
    1,081
    Where do I sign?
     
  10. zed

    zed
    Veteran

    Joined:
    Dec 16, 2005
    Messages:
    4,384
    Likes Received:
    598
    I would love another mission to venus whens the last time they went 1976 IIRC and sent back those wonderful greenish photo's the most amazing otherworld photo's ever, better than anything taken on mars. with todays tech we could maybe even make a rover that could survive there a few days
     
  11. nutball

    Veteran Subscriber

    Joined:
    Jan 10, 2003
    Messages:
    2,118
    Likes Received:
    439
    Location:
    en.gb.uk
    Mebbe. AFAIK the problem is that the heat cooks the electronics. Building mechanical stuff that can work at a sustained 450C might be do-able with modern techniques, electronics I'm not so sure.

    Anybody here have any insights?
     
  12. eloyc

    Veteran Regular

    Joined:
    Jan 23, 2009
    Messages:
    1,892
    Likes Received:
    1,081
    AFAIK, it's not currently possible. The most plausible option I heard about was last year and it consisted in a mechanical solution:
    https://www.nasa.gov/feature/jpl/a-clockwork-rover-for-venus
     
  13. Sxotty

    Veteran

    Joined:
    Dec 11, 2002
    Messages:
    4,833
    Likes Received:
    299
    Location:
    PA USA
    I imagine it would be possible, just not what we do. Designing one off electronics that are going to be super low performance as well just seems like an insanely expensive undertaking. Entirely new process would need to be developed.
     
    eloyc likes this.
  14. eloyc

    Veteran Regular

    Joined:
    Jan 23, 2009
    Messages:
    1,892
    Likes Received:
    1,081
    https://www.sciencenews.org/article/planet-hunting-kepler-space-telescope-dead?tgt=nr

    https://www.sciencenews.org/article...p-turn-atmospheric-co2-useful-supplies?tgt=nr

    Just thinking about what could be done with the CO2 in Mars or... Venus.
     
    Lightman likes this.
  15. hoom

    Veteran

    Joined:
    Sep 23, 2003
    Messages:
    2,885
    Likes Received:
    448
    Onboard view of Soyuz failure
     
    eloyc, Lightman and cheapchips like this.
  16. eloyc

    Veteran Regular

    Joined:
    Jan 23, 2009
    Messages:
    1,892
    Likes Received:
    1,081
    https://www.space.com/42303-robert-zubrin-moon-direct-lunar-colonization.html
     
  17. cheapchips

    Regular Newcomer

    Joined:
    Feb 23, 2013
    Messages:
    676
    Likes Received:
    405
    Moon Direct is a much more interesting idea than the luna gateway. Hopefully some form of it gains more traction than Mars Direct!

    Probably not. He needs a better pork allocation appendix.
     
    eloyc likes this.
  18. hoom

    Veteran

    Joined:
    Sep 23, 2003
    Messages:
    2,885
    Likes Received:
    448
    This vid explains what actually happened
     
    Lightman and eloyc like this.
  19. eloyc

    Veteran Regular

    Joined:
    Jan 23, 2009
    Messages:
    1,892
    Likes Received:
    1,081
    Do any of you guys have an idea why is not possible to perform a smooth, slower reentry to the Earth's atmosphere, so that the burning issue was not an issue anymore?

    I read some of it here:
    https://en.wikipedia.org/wiki/Atmospheric_entry

    It basically says that it's not practical to use retrorockets because of a fuel limitation, but I'm highly surprised that there's zero current research on this.
     
  20. hoom

    Veteran

    Joined:
    Sep 23, 2003
    Messages:
    2,885
    Likes Received:
    448
    Because orbital velocity is really really fast.
    Min orbital velocity is about 25,000km/h.

    Why try to slow down with a huge amount of fuel thats extremely expensive to get into space when you can just use drag/friction to bleed it off on the way down nearly for free?

    The only way to really do a slow reentry would be a Space Elevator but even if possible to build who wants to sit in a car/pod for a 'slow' 36,000km journey down from geostatiionary orbit?
     
    eloyc likes this.
Loading...

Share This Page

  • About Us

    Beyond3D has been around for over a decade and prides itself on being the best place on the web for in-depth, technically-driven discussion and analysis of 3D graphics hardware. If you love pixels and transistors, you've come to the right place!

    Beyond3D is proudly published by GPU Tools Ltd.
Loading...