Astronomers are on the hunt for a mysterious ninth planet, known as Planet Nine, which could change our understanding of the solar system. Is this hidden world real, or just a myth?

New data confirms Hubble's finding and refutes current theories of planet formation in the universe’s early days. Thanks to ...

The Quadrantid meteor shower is one of the strongest, and quickest, meteor showers of the year. Here’s what you need to know ...

Many stars in our galaxy exist in pairs. Now scientists are finding clues that our Sun may once have had a companion of its ...

On Christmas Eve the Parker Solar Probe flew closer to the Sun than any spacecraft, orbiting 10 times closer than the planet ...

Saturn's intricate structure, interactions, and diverse components make it a fascinating 'mini solar system' within the ...

From Northern Lights to total lunar eclipses, these are the 10 events astrophotographers should shoot this year ...

NASA’s James Webb Space Telescope now includes asteroids on its list of objects studied and secrets revealed. A team led by ...

Space.com was on duty all year to bring you every major development in our understanding of the universe's most fascinating ...

During the early morning of Monday 8 September, the full Moon will move into the shadow of Earth and be totally eclipsed. The ...

A NASA spacecraft has made history by surviving its closest-ever approach to the Sun during the Parker Solar Probe mission, a project over six years in the making. The spacecraft was out of ...