SciShow

The 2 Secrets to Sending People to Mars (2013x136)

Air date: Sep 04, 2013

Hank revisits his passion for exploring the Red Planet, breaking down the two biggest challenges of sending humans to Mars: radiation and propulsion. He explains the science behind the obstacles future Mars-bound astronauts will face, as well as they technology they'll have to use to surmount them. Onward!