NASA is all-systems-go to land its 2,000 pound Curiosity rover on the Red Planet this coming Monday. Want a refresher of what it's all about? NASA has prepared a video covering the Mars Science Lab's approach, landing and operations on the Martian surface, and got none other than William James T. Shatner Kirk to tell you all about it.

It's nothing short of incredible to know that flags placed by astronauts on the moon are still flying after more than 40 years in space. The stunning proof was found in photos taken by NASA's Lunar Reconnaissance Orbiter Camera (LROC), and comes just on the heels of the anniversary of the first lunar landing.

The 3D printing revolution is upon us — with people printing everything from new jaw implants to entire museum collections. Surely NASA's cranking stuff out left and right? Well, sort of. NASA has been experimenting with special 3D printers for years now, but has only recently tested the equipment in parabolic flight. That means space could be the next step

Astronaut Neil Armstrong took the photo above 43 years ago to the day on July 20, 1969. It was his first snap after setting foot on the surface of the moon. Soon after, Buzz Aldrin would also climb down from the Apollo 11 lunar module, called Eagle, and the pair would become the first humans to walk on a celestial body other than Earth.