The solar system isn’t as flat as it seems. This video reveals the hidden 3D structure surrounding our planetary plane, from ...

Astronomers have gotten their clearest look yet at the surface of an exoplanet - a planet beyond our solar system - ​thanks ...

By Will Dunham WASHINGTON, May 4 (Reuters) - In the far reaches of our solar system - beyond the outermost planet Neptune - ...

NASA’s James Webb Telescope captured the clearest view yet of a rocky exoplanet, revealing a scorching, airless world unlike ...

"Most planetary systems appear as 'peas in a pod.' This is not the case in the TOI-201 system." ...

A gradual dimming and brightening when a star passed behind it suggested the mini-Pluto was wrapped in a thin layer of air.

A new study suggests that a tiny, icy world beyond Pluto harbors a thin, delicate atmosphere that may have been created by ...

It even has a small moon.

A tiny world that orbits way beyond Neptune surprised astronomers with a thin atmosphere that they did not expect to find.

In the far reaches of our solar system – beyond the outermost planet Neptune – resides a host of icy and desolate celestial ...

Sky This Week is brought to you in part by Celestron. Friday, May 8Pluto is stationary at 7 A.M. EDT in Capricornus, although ...

The giant asteroid Apophis will make a historically close approach to Earth on April 13, 2029. Scientists have ruled out any risk of Apophis hitting Earth for at least the next century. The 2029 flyby ...