By John Wenz
www.popularmechanics.com
8-24-15
NASA's Low-Density Supersonic Decelerator (a.k.a. it's "Mars UFO") has been stealing the spotlight for a while, but it's not the only way NASA plans on parachuting astronauts and hardware safely to the surface of the Red Planet. There's also Hypersonic Inflatable Aerodynamic Decelerator (HIAD), a mushroom-shaped cargo lander that's one part heat shield and one part inverted parachute. ...
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