NEO (Near Earth Orbit) and Planetary Defense. I so want to say Deathstar.

http://www.planetarydefense.info/index.html

But this is a serious resource for people working on the detection and possible deflection of objects that might impact Earth.

See also  http://www.nss.org/resources/library/planetarydefense/WhitePaper-2009PlanetaryDefenseConference.pdf

US Military Throwable Robots, reminds me of Robot Wars

I really like watching Robot Wars/ BattleBots, and at least a couple of these Military designs looked like they were based on those concepts.