NASA’s IMAP mission will explore the heliosphere and study how it shields Earth from cosmic radiation and space weather.

Who hasn't looked into the sky and wondered if there's life out there, somewhere, looking back at us? Is it possible there's alien life closer to home — within the bounds of our solar system? The ...

Normally when a medium-size star dies, it blasts away the bulk of material in its system. The Hubble discovery was surprising ...

An accidental discovery might change how we think about one of the most mysterious structures in our solar system. The Oort Cloud, a large expanse of icy bodies revolving around the sun at a distance ...

Early Earth lacked life’s essentials until a collision with Theia added them. This chance event made life possible. After the Solar System formed, it took no more than three million years for the ...

The bold question-askers at What If explore whether our Solar System could survive if it ended up orbiting a black hole. Treasury leaves door open to tax raid on pensioners Phillies Secure Bizarre ...