Astronomers photographed a baby planet, WISPIT 2b, during its formation process within a dusty ring around its star system.

What seemed like new planets around Fomalhaut were actually expanding dust clouds from violent planetary collisions seen by Hubble.

A celestial phenomenon is forming in the Northern Hemisphere on Friday, as seven planets are expected to appear lined up in the night sky. Most are expected to be visible to the naked eye, though not ...

Stargazers are in for a treat early this new year, as the sky is full of stars - quite literally so! January is set to witness an alignment of not one, not two - but six planets in the night sky! As ...

SEATTLE — While the winter and early parts of spring are not ideal times to see the sky in the Pacific Northwest, western Washington residents have an abundance of astronomical events to keep an eye ...

An artist's illustration of a possible ninth planet in our solar system, hovering at the edge of our solar system. Neptune's orbit is shown as a bright ring around the Sun. Scientists in Taiwan ...

The Sun makes Earth habitable, governs its climate and drives a variety of natural phenomena through its variable magnetism. Indeed, all planets in and outside the Solar System exist under the ...

NASA’s Curiosity rover has been tootling across the martian surface since 2012, its lofty quest to determine if Mars ever had environmental conditions suitable for microbial life. While it’s already ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. After decades of ...

Astronomers have spent decades trying to find Earth-like planets beyond our solar system. These worlds are small, cold, and difficult to detect, especially when they lie in the "temperate zone"—the ...