'Lunar Loo' challenge asks people to help astronauts poop on the Moon

There's 51 days left to design a NASA toilet fit for Moon-traveling astronauts.

A newly launched lunar loo challenge is asking those who are interested to redesign a toilet for the Moon that works in both lunar gravity and microgravity. NASA expects to return humans to the celestial orb in 2024 as part of the Artemis...