Do aliens exist? Could Earth really be the only planet hosting intelligent life? Debates over the existence of extraterrestrials date back to the earliest Indigenous and western thought. The tools ...

From lava tubes on Mars to ice pockets on Europa, subterranean environments may offer the best chance of finding life—and living safely—beyond our planet. “I was like, ‘OK, I'm pretty sure that ...

Mars presents one of the strangest sights in the solar system: a blue-tinted Sun setting against a red sky. This episode explains the physics behind this eerie phenomenon, from fine dust particles to ...