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Asteroid near miss tomorrow

Discussion in 'Science and Technology News' started by SDProf, Oct 11, 2017 at 10:56 PM.

  1. SDProf

    SDProf Vegetarian by proxy
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    Asteroid the size of a house will pass by at about 26,000 miles.

    That's just outside the orbit zone of geosynchronous satellites.

    What if one was to make an even closer approach, say in the 20K mile range. What kind of havoc could that create if it smashes numerous satellites? Sure, space is big, but a house sized object crossing all those orbits could be a big threat to technology. And consider the debris it would scatter.

    http://www.bbc.com/news/science-environment-41583704
     
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  2. MCW Sky

    MCW Sky Well-Known Member
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    The Kessler syndrome (also called the Kessler effect,[1][2] collisional cascading or ablation cascade), proposed by the NASA scientist Donald J. Kessler in 1978, is a scenario in which the density of objects in low earth orbit(LEO) is high enough that collisions between objects could cause a cascade where each collision generates space debris that increases the likelihood of further collisions.[3] One implication is that the distribution of debris in orbit could render space activities and the use of satellites in specific orbital ranges infeasible for many generations.[3]

    https://en.m.wikipedia.org/wiki/Kessler_syndrome

    There has been talk for some time in the field of ways to mitigate possible collisions by sending up some sort of trash collection satellite. The primary obstacle is the amount of manouvering and thus fuel that would need to be on board to be very effective at capturing enough to make a difference.
    They do monitor thousands of pieces of debris as well as satellite tracks (most obrit in the same direction but some are circumpolar instead and of course the higher you go they after they move) and do sometimes need to command one to alter its corse to avoid collisions.
    The lowest ones are affect by drag in the upper atmosphere as it expands and contracts.

    That article says this one was only discovered 5 years ago which doesn’t seem like much time to me given that as far as I know we don’t yet have an established way to do anything about it.
     
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  3. Flamingsuit

    Flamingsuit Alight With An Eternal Flame

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    What if we just pass a law banning asteroids from hitting the earth?
     
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  4. MCW Sky

    MCW Sky Well-Known Member
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    Just need to post a few Asteroid Free Zone signs, they've worked at my house for at least 20 years already.
     
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  5. SDProf

    SDProf Vegetarian by proxy
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    A long time ago, in the earlier days of the space program, some guy was proposing a space cleanup operation. He was especially interested in snagging the Hasselblad cameras that had been left in orbit by Gemini astronauts.
     
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  6. JMichna

    JMichna Grand Poobah, Possum Lodge
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    These guys will handle any asteroid emergency:


    [​IMG]
     
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  7. kentb

    kentb Death Rides a Pale Horse
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    ^^

    Due to budget cuts .....These guys are now performing that tasking......

    [​IMG]
     
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  8. WoodBurner

    WoodBurner Administrator
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    Even if it got into the orbits of satellites isn't it extremely unlikely there'd be a collision? Time and space, there's a lot of that out there, heck what's the chances? I'd think millions if not hundreds of millions to 1, better shot at Powerball no?
     
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