CNN Moonshots for the 21st Century A Fareed Zakaria GPS Special September 6, 2015 14:08:00
>> adamsteldzner is the scientist who made it happen. >> mars' atmosphere is thin. it's equivalent to the atmosphere on earth at 120,000 feet to 150,000 feet. >> too thin to slow down "curiosity" enough with parachutes, so he and his team thought up the sky crane, a rocket-powered craft that would lower the rover to the surface with cables and then speed off and crash-land a safe distance away. >> we knew that every time we spoke of it we would lose our credibility because it looked so crazy. >> the crazy plan worked. but landing humans on the red planet would be a lot harder than landing a ro...
Source: archive.org