The US Space Force

sferrin

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I'll believe it when I see it. 99% of the headlines like this we see turn out to be basically click-bait. "We modified Northrop Grumman's MEV to scoop up space trash. Since this trash would no longer be able to "potentially" hit one of our military satellites it's defending them. So it's a defensive weapon really. But in defending our military satellites it makes our offensive forces more effective so really it's an OFFensive weapon."

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Grey Havoc

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mkellytx

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TomS

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dannydale

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No idea why they can't get pants that fit, though.
Exactly what I thought. They should have looked at JJTrek or Disco, then let out the tailoring just a tad for those people who dislike constricting clothing.
Vibes of the old Union Army uniform as well, or is that my imagination working overtime?
Wow I see it too. Cannot unsee!
 

dannydale

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mkellytx

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And the dress uniform. Lifted from Battlestar Galactica, so at least they're using new source material this time...

No idea why they can't get pants that fit, though.
Dear God, the science fiction nerds have taken over. Thank goodness I never got spranged and wore silver wings with feathers.
 

bobbymike

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Democrats are introducing a bill to abolish the Space Force established by former President Donald Trump as a new branch of the military to defend American national security in the expanding world that is increasingly using satellite technology for business, communications, and defense.

As Congress moves to pass the National Defense Authorization Act (NDAA), the annual bill that authorizes funding for the Pentagon, Rep. Jared Huffman, D-Calif., introduced the "No Militarization of Space Act," co-signed by Reps. Mark Pocan, D-Wis., Jesús García, D-Ill., Rashida Tlaib, D-Mich., and Maxine Waters, D-Calif.
 

sferrin

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Democrats are introducing a bill to abolish the Space Force established by former President Donald Trump as a new branch of the military to defend American national security in the expanding world that is increasingly using satellite technology for business, communications, and defense.

As Congress moves to pass the National Defense Authorization Act (NDAA), the annual bill that authorizes funding for the Pentagon, Rep. Jared Huffman, D-Calif., introduced the "No Militarization of Space Act," co-signed by Reps. Mark Pocan, D-Wis., Jesús García, D-Ill., Rashida Tlaib, D-Mich., and Maxine Waters, D-Calif.
Typical.
 

rooster

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Now add Los Alamos and Lawrence Livermore to build a gigaton nuke for asteroid deflection

Gigaton bomb would require roughly 200 ton of payload capability.
Fragmenting an asteroid would simply turn a rifle into a shotgun. Apart from very long-term methods like gravity tractors, IIRC thinking is now focussed on setting off a smaller nuke to one side of an object, vaporising its surface layers on that side to change its trajectory. With large or fast-moving objects that are already close, it could be done incrementally, using multiple charges placed in a 'roadway'.
Why would a nuke fragment an asteroid? There is no explosion in space. Just heat and light and radiation. A properly place nuke on a asteroid will vaporize a hole in it and the outgasing would change the trajectory of the asteroid per newtonian mechanics. Nukes are much much more effective than lasers in causing outgasing to alter trajectory. Good luck focusing a laser on an asteroid millions of miles away and if its tumbling as we have seen asteroids do DO then good luck getting outgasing from it enough to matter using a laser. Oh darn, the earth rotated again... We'll have to re-aim our laser tomorrow night.
 
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Rhinocrates

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Why would a nuke fragment an asteroid? There is no explosion in space. Just heat and light and radiation.
Detonating on the surface or even (a la Deep Impact), beneath it is what most people think of. Many asteroids, like Bennu, are loose rock piles anyway.

I didn't think about controlled outgassing. Deploy a mirror near an object and focus the light continually on a point, assuming it's not rotating (unlikely) or on a pole perhaps?
 

publiusr

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A nuke flashes that whole side in an instant of thrust. The tumbling of and asteroid in all directions might null out gradual thrust anyway.

No shockwaves in a vacuum.
Maybe the best way to deal with a rubble pile…fuse it into one mass with enough stand-off blasts maybe?
 

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