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Asteroid deflection? Planetary defense?

  • 07-07-2017 8:58pm
    #1
    Fathom
    Moderators, Category Moderators, Science, Health & Environment Moderators Posts: 9,338 CMod ✭✭✭✭


    NASA moves from concept to preliminary design. For planetary defense against asteroids. Called DART (Double Asteroid Redirection Test). It's a kinetic impactor technique. Striking the asteroid to shift its orbit away from Earth. DART will practice on 2024 near flyby event. Twin asteroids flying together. Didymos A (780 meters in size) and Didymos B (160 meters). Think it will work? Comments?


Comments

  • #2
    CrabRevolution
    Registered Users, Registered Users 2 Posts: 2,917 ✭✭✭CrabRevolution


    In my mind I always think "In the future we'll definitely be able to deflect potentially harmful asteroids" but I never really thought we'd get started on the technology so soon.

    Reminds me of the scene in Red Dwarf where they have to impact an asteroid to block up a "white hole", with the scenario being visualised as a galactic sized pool game!


  • #3
    Fathom
    Moderators, Category Moderators, Science, Health & Environment Moderators Posts: 9,338 CMod ✭✭✭✭Fathom


    syal_2_620.jpg


  • #4
    Fathom
    Moderators, Category Moderators, Science, Health & Environment Moderators Posts: 9,338 CMod ✭✭✭✭Fathom


    Will DART be funded? Fiscal year beginning October 1, 2017.


  • #5
    Fathom
    Moderators, Category Moderators, Science, Health & Environment Moderators Posts: 9,338 CMod ✭✭✭✭Fathom


    Asteroid Impact and Deflection Assessment (AIDA). Collaboration. NASA. European Space Agency (ESA). Observatoire de la Cd´Azur (OCA). Johns Hopkins University Applied Physics Laboratory. Kinetic impact technique. Deflect asteroid in space.


  • #6
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 93,591 Mod ✭✭✭✭Capt'n Midnight


    https://www.theregister.co.uk/2017/07/31/planetary_defence_test_as_asteroid_2012_tc4_flies_by_in_october/
    Scary news: Asteroid may pass Earth by just 6,880km in October
    Good news: Chelyabinsk-sized rattler won't wipe us out, will let us test asteroid defences

    Seriously
    https://uanews.arizona.edu/story/asteroid-flyby-help-nasa-observation
    For the first time, NASA will use an actual space rock for an observational campaign to test NASA's network of observatories and scientists who work with planetary defense. The asteroid, named 2012 TC4, does not pose a threat to the Earth, but NASA is using it as a test object for an observational campaign because of its close flyby on Oct. 12, 2017.


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  • #7
    Fathom
    Moderators, Category Moderators, Science, Health & Environment Moderators Posts: 9,338 CMod ✭✭✭✭Fathom


    What if they error and deflect asteroid towards Earth?


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