If there are potentially thousands of planets that can sustain life, where are all the aliens? Stream Full Episodes of N...

Hear from astronaut Harrison "Jack" Schmitt as he discusses working on the Moon during the Apollo 17 mission. Stream Ful...

If you buy a crater in hopes of striking it rich, you might have a bad time. Stream Full Episodes of NASA's Unexplained...

According to NASA scientists, Enceladus may be the best place to look for alien life. It has a warm core, an ocean, and...

Neutron stars are super dense, highly magnetized celestial bodies. Their discovery in 1967 changed our understanding of...

Is a moon to blame for a hole in one of Saturn's rings? Stream Full Episodes: https://www.sciencechannel.com/tv-shows/ou...