Over the past decade or so, astronomers have speculated about the characteristics of rogue planets in the Milky Way galaxy.

Warmer climates than Earth’s could accelerate life’s development, potentially increasing the number of planets with more ...

A breathtaking new video compresses more than a decade of deep-space observation into a few seconds, revealing the hypnotic ...

To understand how chaotic the early solar system was, we need only gaze at the moon. Its cratered surface bears the scars of ...

A planet circling at a sharp 90-degree angle to the orbits of its two host stars has now been confirmed. This discovery ...

Astronomy fans got to see a planetary alignment in mid-April featuring Venus, Saturn, Mercury and Neptune. Stargazers will once again be treated to a planetary alignment in May, though not as big as ...

"It's like trying to spot a fish by looking for ripples in a pond, rather than trying to see the fish itself." ...

"I had been waiting my entire career for Webb so that we could meaningfully characterize the atmospheres of these smaller ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

The JWST continues to live up to its promise by revealing things hidden from other telescopes. One of its lesser-known ...

Earth has four seasons, but do other planets in our solar system also have hot summer days and cold winter nights?