This is a really great achievement: SpaceX successfully launched a rocket and deployed 11 satellites after failing earlier this year. But best of all, they landed the first stage back on earth! Consider the actual physics involved, mind boggling.
http://www.wired.com/2015/12/spacex-just-landed-rocket-ground-first-time/ http://arstechnica.com/science/2015/12/by-making-a-historic-landing-spacex-launches-new-age-of-spaceflight/ Sven
