Falcon 9

SpaceX's successful maiden flight of its Falcon Heavy rocket puts humans one step closer to Mars.
Twitterverse explodes as SpaceX Falcon 9 puts on a gobsmacking light show.
It's cool because with reusable rockets, space flight could get cheaper.
Let's face it: spaceflight is inherently risky, and getting into orbit is one of the most dangerous phases of any mission
It's too early to tell but if Bezos and Musk can prove themselves to be the great creators of our generation, these undeniably demanding work environments will be validated as its own innovation, one independent of the ingenuity that gave us online shopping, electric cars and rockets to outer space.