NASA has a new Mars mission: seeking volunteers to spend an entire year living in a simulated version of the red planet.
Why it matters: The surface mission on a 3D-printed habitat, called the Mars Dune Alpha, will help inform the agency's plans for human exploration of the planet, per a statement from NASA.
A total solar eclipse will be viewable in April but don't wait until then to buy glasses, because you might not find any.
Why it matters: The total eclipse will be visible in 13 states on April 8 and a partial in all others except Alaska and Hawaii, but viewing it without proper glasses could damage your vision.
