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Directed Energy Planetary Defense and Relativistic Probes

deepspace.ucsb.edu

1–10 of 34 posts

Re: Directed Energy Planetary Defense and Relativistic Probes

#5

Naming it DEath-STAR is probably not the best way to build public support.

With powerful systems you never know whether they are going to save you or evaporate you. Funny shit like this doesn't get funding unless there are military options to it I'd wager.

Re: Directed Energy Planetary Defense and Relativistic Probes

#7
Happened to catch rockstar astrophysicist Neil deGrasse Tyson on Charlie Rose the other night and the subject of asteroid deflection came up. For small candidates, vaporization would be ideal. But for larger ones, any attempt at destroying them may have unwanted consequences. Debris fields, partial cleaving, etc. Sending a team of human miners with demolition expertise is not in the cards. So the current vogue in asteroid deflection would be to send something heavy to intercept the asteroid and deflect it a degree or two using only gravitational pull! A very clean and elegant solution that would no doubt make a great simulation or video game ;)

Mission Concepts and Operations for Asteroid Mitigation Involving Multiple Gravity Tractors

http://www.ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/201...

Re: Directed Energy Planetary Defense and Relativistic Probes

#9

Happened to catch rockstar astrophysicist Neil deGrasse Tyson on Charlie Rose the other night and the subject of asteroid deflection came up. For small candidates, vaporization would be ideal. But for larger ones, any attempt at destroying them may have unwanted consequences. Debris fields, partial cleaving, etc. Sending a team of human miners with demolition expertise is not in the cards. So the current vogue in ast…

This already exists in a video game. It's call kerbal space program. But instead of gravity you can attach thrusters to asteroids to deflect them. The mod was created by NASA.

Re: Directed Energy Planetary Defense and Relativistic Probes

#10
post #6

can this be weaponised to direct asteroids to a particular place on earth? just asking for a friend.

My guess is no. Reason: steering towards is a smaller target than steering away. If you can only point a laser from over here, it's hard to steer an asteroid any way except "thataway" (normal to the most visible surface).
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