The cosmos is a void dotted with stars and an ever-increasing number of newly-observed planets beyond our solar system. Yet, how these stars and planets formed out of clouds of interstellar dust and ...

Planets usually stay close to their host stars, tracing steady paths shaped by gravity. Yet some planets break free and drift ...

Most people know the difference in appearance between a star and a planet. They'll tell you that stars twinkle while planets don't. And that's largely correct. Stars are so far away that they look ...

Dark matter remains frustratingly elusive. We have not seen any direct detection in any of our laboratory experiments, and at cosmic scales we only have circumstantial evidence that it exists. Now, a ...

(CNN) — The first experiment to produce oxygen on another planet has come to an end on Mars after exceeding NASA’s initial goals and demonstrating capabilities that could help future astronauts ...

SLAC’s X-ray laser and Matter in Extreme Conditions instrument allow researchers to examine the exotic precipitation in real-time as it materializes in the laboratory Earlier experiments that ...

New experimental research demonstrates that sub-Neptune exoplanets, the most common class discovered, could possess large quantities of liquid water. The study simulated early planetary conditions, ...

In a groundbreaking revelation, scientists have unveiled an explosive new map of an exoplanet that annihilates water. This map provides a detailed view of the planet’s volatile surface and atmospheric ...

The solar system's eight planets will never truly be in a straight line, but they can get close to it. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Astronomers have found planets that are twice as wide as Jupiter and more than 10 times as heavy, but there's a limit to how big planets can get. When you purchase through links on our site, we may ...

Eric Mack has been a CNET contributor since 2011. Eric and his family live 100% energy and water independent on his off-grid compound in the New Mexico desert. Eric uses his passion for writing about ...