Find out why NASA engineers call the upcoming Mars landing "Seven…

Stop what you're doing and watch this. Invite whoever you're with to watch it, too. In just 44 days, NASA will attempt the most amazing planetary landing in the history of space exploration. It's a plan so remarkable, so technically impressive, so very different from anything ever attempted, that even the Agency's… » 6/22/12 12:20pm 6/22/12 12:20pm