The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Our solar system contains planets, dwarf planets, asteroids and comets — but only one world is known to harbor life.

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

In a nutshell Scientists found pristine salt minerals in asteroid Bennu samples that formed in a specific sequence as ancient ...

The building blocks of life could have been delivered to solar system dwarf planet Ceres by one or more space rocks from the ...

Executive order mandates changes on US maps. But will other countries follow suit? Learn more about this renaming.

Analysis of debris from the nearly 5 billion-year-old asteroid Bennu suggests the building blocks of DNA and RNA were present ...

It took two years for NASA's OSIRIS-REx space probe to return from asteroid Bennu before dropping off a small capsule as it ...

The Bennu discovery helps to illuminate how, early in the Solar System’s history, asteroids and other planetary building blocks were not just “lumps of stone and ice, but active ‘living’ objects”, ...

The dwarf planet is a bizarre, cryovolcanic world. However, the organic deposits discovered on its surface so far are ...

Timing: Dusk after sunset, but before 9 p.m. local time There are eight planets in our solar system and one dwarf planet (Pluto). Because we live on Earth, the most we could see is a maximum of seven ...

One of the legacies of being president is having things named in your honor, and Joe Biden is no exception – but he had a head start. Several namesakes were stamped with the Joseph R. Biden Jr ...