Water isn't just delivered to planets by comets and asteroids — it can also be forged as worlds form, a new study finds. For ...

Experiments at high temperatures and pressures reveal chemistry that can generate water on the surface of exoplanets ...

In 1949, famed mathematician and physicist John von Neumann delivered a series of addresses at the University of Illinois, ...

As telescopes have become more powerful, it’s turned out our solar system is not the only game in town: There are millions of ...

“Our analysis shows that the solar system is moving more than three times faster than current models predict,” Böhme ...

Learn how exoplanets are discovered, what makes planets beyond our solar system unique, and how they drive the ongoing search ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course. When ...

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to form in ...

Scientists previously thought the solar system was flying through space at 515,000 mph. It may actually be going three times ...

There’s a bit of a paradox about our galaxy: it’s both jam-packed with stars and cavernously empty. The Milky Way is crowded in the sense that it holds hundreds of billions of stars, as well as ...