Solar System

A massive column of sulfur dioxide pumped out by the erupting volcano on Iceland's Reykjanes Peninsula is traveling across northern Europe. Scientists are concerned it could impact the ozone layer.

Impact craters in Europa's icy crust have been used to measure the thickness of the world's shell, leading scientists closer to learning if this frozen moon could host life as we know it.

There's a growing and passionate call for preserving radio silence on the far side of the moon in order to protect the possibility of conducting valuable radio astronomy.

The concept for a flying, wing-heavy drone called MAGGIE could one day show us an entirely new perspective on Mars.

NASA engineers just delivered a Mars instrument to Japan for a future mission. New NASA astronaut Andre Douglas helped get the Martian Moons Exploration mission ready for liftoff.

A new model of cometary evolution and interiors could help explain the explosive behavior of "ice bomb" comets as they pass close to the sun.

Aerospace giant Northrop Grumman is outlining a proposed railway system for the moon, with support from the U.S. Defense Advanced Research Projects Agency.

Despite the failure of the first U.S. commercial lunar lander to ever operate in space, Astrobotic is pressing ahead with its next moon, set for 2024.

Water freely flowed across Mars billions of years ago, suggesting the Red Planet could also once have supported life. But this water may have existed for just a short time.