Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of ...

It's possibly as big as Manhattan, likely older than our own solar system, and it's traveling through space at speeds of up ...

NASA has pointed its fleet of spacecraft at comet 3I/ATLAS to collect new footage of the interstellar invader. The agency has ...

Explore the vastness of the Solar System in this video, which accurately showcases the relative sizes of the planets and ...

New research shows that Theia, the planet that collided with Earth and formed the Moon, was a rocky world born closer to the ...

The discovery could allow us to better understand how Neptune migrated from the inner solar system to its current location ...

There are no confirmed exomoons, moons orbiting distant exoplanets in other solar systems. There are a few candidates, but ...

About 4.5 billion years ago, the most momentous event in the history of our planet occurred: a huge celestial body called ...

Researchers from the Max Planck Institute for Solar System Research led the study. They examined iron isotopes in 15 Earth ...

It's the third of a generous five Saturdays in the month of November. What did we do to deserve such a bounty of days off? In ...

For many, space travel is unrealistic – spaceships are expensive, and interplanetary exploration doesn’t fit in with a 9-to-5 ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers have discovered that aging stars in their so-called "red giant" phase are even more destructive to their orbiting planets than ...