How NASA's 'Real Martians' Are Preparing for Manned Trips to Mars

NASA is working to get the agency ready for a human mission to the Red Planet in a few decades, and is showcasing its personnel and projects online. Among NASA's many spotlights is a fascinating new video that zooms in on a NASA power system engineer's quest to create enough electricity to power a Mars base. To Alleyne, the International Space Station showcases many different kinds of research, ranging from biology to physics to Earth and space science.