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All-TigerNet [13024]
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All-TigerNet [10867]
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Great, they are going to knock it off course and into
Nov 24, 2021, 9:19 AM
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a collision course
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Hall of Famer [21557]
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Also the first thought that popped in my head.***
Nov 24, 2021, 10:09 AM
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110%er [6692]
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Re: Great, they are going to knock it off course and into
Nov 24, 2021, 10:12 AM
[ in reply to Great, they are going to knock it off course and into ] |
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They say it is so far away it won't make a difference. ALso, they say it has to be really far away and not remotely close, because if they hit it closer to Earth it could break into many smaller pieces and hit the Earth all over the place.
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Heisman Winner [119591]
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SG1 will be filming the collision
Nov 24, 2021, 9:20 AM
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From one of their F302 hyperspace fighters
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All-In [26968]
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The good news is that we were successful in knocking
Nov 24, 2021, 9:36 AM
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the asteroid off its course. The bad news is that it's now headed for Tupelo, Mississippi.
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Heisman Winner [111417]
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More importantly
Nov 24, 2021, 10:26 AM
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the fact that they are doing this is a bit disturbing in that it could suggest one is already our way.
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All-In [34100]
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It cannot possibly backfire.
Nov 24, 2021, 12:31 PM
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The story is really interesting though. Our scientists are able to bulls-eye an asteroid 525 feet across (less than 2 football fields) that's 6.8 million miles away AND that's orbiting another, bigger asteroid. We're going to smack it head-on at a speed of 15,000 miles an hour or about 4 miles a second. Presumably that's the speed relative to the asteroid itself.
The result: slowing down the asteroid's orbit around the bigger asteroid, which is currently one orbit every 11 hours 55 minutes. The impact, if successful, will slow its orbit by up to ten minutes. So it's not going to be blowing up the asteroid or making a major change, but it's amazing if we can actually do this.
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Legend [15730]
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It’s not impossible. I used to bullseye wimp rats in my T-16
Nov 24, 2021, 1:07 PM
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back home.
But yes I agree…fascinating if they are successful. The mind boggles at the calculations that go into this.
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All-In [34100]
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Pretty sure that movie is the only reason
Nov 24, 2021, 4:50 PM
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my brain ever thinks of "bulls-eye" as a verb.
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Hall of Famer [24694]
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Bump it into the bigger one and see the trajectory change...
Nov 24, 2021, 1:13 PM
[ in reply to It cannot possibly backfire. ] |
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Nice concept.
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All-In [34100]
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It can't, though.
Nov 24, 2021, 4:57 PM
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NASA's home run number is a 10-minute change in orbital period, which is a 1.4% change. But they consider success to be a change of 73 seconds, which is something like a 0.17% change. The calculations would need to off by an astronomical (excuse the pun) factor to have it collide with the larger asteroid.
The real problem is that it's extremely difficult to much effect at all on the orbits of objects this large.
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110%er [5648]
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whatever happens, it can't result in the movie
Nov 25, 2021, 5:54 PM
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Armageddon being shown more than it already is (at least I hope not!)
https://www.imdb.com/title/tt0120591/ Armageddon (1998) - IMDb Armageddon: Directed by Michael Bay. With Bruce Willis, Billy Bob Thornton, Ben Affleck, Liv Tyler. After discovering that an asteroid the size of Texas is going to impact Earth in less than a month, NASA recruits a misfit team of deep-core drillers to save the planet.
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