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  1. #31
    5 Star Poster sukumvit boy's Avatar
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    Default Re: The next great space mission should be protecting the earth from asteroid impacts

    Yup , we can't put the Genie back in the bottle .
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  2. #32
    5 Star Poster sukumvit boy's Avatar
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    Default Re: The next great space mission should be protecting the earth from asteroid impacts

    Today the US Air Force chimed in on the dangers of Space Junk and asteroid collisions.
    http://www.af.mil/News/ArticleDispla...pace-junk.aspx



  3. #33
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    Default Re: The next great space mission should be protecting the earth from asteroid impacts

    A lengthy article in today's Guardian on the colonisation of space and the options some of which are being implemented. Too long to copy -there is a separate link with photos- so here are some extracts -in the meantime I would gladly swap Mars for an apartment near the Champ de Mars....

    "For a brief moment in the 1970s, the grandeur of the night sky felt interactive. It seemed only decades away that more humans would live off the Earth than on it; in fact, the Space Shuttle was so named because it was intended to make 50 round trips per year. There were active plans for expanding civilisation into space, and any number of serious designs for building entire cities on the moon, Mars and beyond.

    In O'Neill's vision, cable cars would connect communities spaced at 200km intervals. Single-family spacecraft – the minivans of the sky – would act as recreational vehicles. On the inner surface of what would be rotating habitats, strips of land would alternate with windows to let in sunlight. That same sun would provide all of our energy needs (a much bolder statement in the 70s than it is now), while the moon would be mined for aluminum and titanium to use in habitat construction. Asteroids, containing water and other material, could be towed along behind the city in the vacuum. His idea to build such cities in the moon’s L5 orbital point inspired the influential L5 Society, which aimed to realise his vision by 1995. Their motto: L5 in ’95!

    Still, with longer stays in zero gravity, new problems seem to crop up. For example, your cerebrospinal fluid – the clear liquid found in the brain and spine – drifts upward, where it engorges your retina and flattens your eyeball.

    As for actually getting people to the space cities in the first place, it won't be using rockets – basic physics doesn’t cooperate. Rather, space elevators, or “beanstalks”, promise to close that gap. Vehicles would climb out of the gravity well along a cable anchored to the equator and held under tension by centrifugal force on a counterweight tens of thousands of kilometers high..."

    Link to the full article -
    http://www.theguardian.com/cities/20...on-musk-spacex


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  4. #34
    Hung Angel Platinum Poster trish's Avatar
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    Default Re: The next great space mission should be protecting the earth from asteroid impacts

    Kim Stanley Robinson writes fascinating (imo) colonization fiction utilizing ideas with some basis in physical reality. I can recommend his novel 2312 and also Red Mars (which features a space elevator).

    On a separate note, I just ran across this brief clipping on space junk ->

    http://space.io9.com/found-rocket-pr...2/+laurendavis


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    "...I no longer believe that people's secrets are defined and communicable, or their feelings full-blown and easy to recognize."_Alice Munro, Chaddeleys and Flemings.

    "...the order in creation which you see is that which you have put there, like a string in a maze, so that you shall not lose your way". _Judge Holden, Cormac McCarthy's, BLOOD MERIDIAN.

  5. #35
    5 Star Poster sukumvit boy's Avatar
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    Default Re: The next great space mission should be protecting the earth from asteroid impacts

    Thanks ,Trish , Kim Stanley Robinson looks interesting . His work is described as 'literary science fiction'.
    The space elevator idea in one that is undergoing serious consideration.
    Space elevator - Wikipedia, the free encyclopedia



  6. #36
    5 Star Poster sukumvit boy's Avatar
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    Default Re: The next great space mission should be protecting the earth from asteroid impacts

    Here's an update .
    ]It looks like our current 'early warning 'system gives us about a 1 week warning on incoming asteroids . Is that enough time to mount countermeasures? Also ,recent observations show fresh impacts on the moon. 1 week , imagine the scenario...

    http://www.npr.org/sections/thetwo-w...oming-asteroid



  7. #37
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    Default Re: The next great space mission should be protecting the earth from asteroid impacts

    Quote Originally Posted by sukumvit boy View Post
    Here's an update .
    ]It looks like our current 'early warning 'system gives us about a 1 week warning on incoming asteroids . Is that enough time to mount countermeasures? Also ,recent observations show fresh impacts on the moon. 1 week , imagine the scenario...
    If you had a week left to live, what would you do? There was this Canadian film about the last night on earth...



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  8. #38
    5 Star Poster sukumvit boy's Avatar
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    Default Re: The next great space mission should be protecting the earth from asteroid impacts

    Yup , I remember that or a similar clip from the late 90's Sandra Oh had my interest back then.



  9. #39
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    Default Re: The next great space mission should be protecting the earth from asteroid impacts

    Looks like the next 'great mission' is to hire the Space Cadets to protect the USA from....

    “The essence of the American character is to explore new horizons and to tame new frontiers. But our destiny, beyond the Earth, is not only a matter of national identity, but a matter of national security.
    “When it comes to defending America, it is not enough to merely have an American presence in space. We must have American dominance in space. So important.”

    https://www.independent.co.uk/news/w...-a8405666.html



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  10. #40
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    Default Re: The next great space mission should be protecting the earth from asteroid impacts

    Earth calling America, Earth calling America...is anyone there?

    The president also mentioned his proposed “space force”, telling supporters there was “so much happening in space” besides “Mars and the Moon.”


    “I have also directed the Pentagon to begin the process of creating the sixth branch of the United States armed forces called the Space Force. Space. Very important,” he said.

    “That’s going to be great. Look, so much is happening now in space, I’m not just talking about Mars and the Moon, I’m talking about tremendous defence capability, offensive capability.

    “It’s in space, so we’re going to do the Space Force.”
    https://www.independent.co.uk/news/w...-a8478241.html


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