Behind the Scenes at NASA
This are jaw-dropping shots of how NASA is building the largest rocket ever. They'll launch the thing just so they can rehearse(!) what they need to do in order to send astronauts to Mars.
The 130-foot-tall hydrogen fuel tank for the rocket is so unwieldy and delicate that moving it from a horizontal to a vertical position (or vice versa) requires three days, two GPS-enabled cranes, and a laser alignment system to position the hardware.This has all got to be *really* expensive but I've got an idea. Let's drop the stupid border wall and use that money to go to Mars instead. Who's with me?