Astronomers measure the speed at which the solar system is hurtling through space by mapping surrounding galaxies and ...

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

A newly discovered cluster of objects called the “inner kernel” of the Kuiper belt could teach us about the early history of ...

By measuring iron isotopes in Moon rocks and meteorites, researchers determined Theia probably formed closer to the Sun than ...

This gas cloud located 500 light years away from our solar system is about to become a planet.This process usually takes a few hundred million years, but what if we made it happen much quicker. And ...

In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that ...

The number 40,000 might not sound particularly dramatic, but it represents humanity's growing catalog of near-Earth asteroids ...

About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across ...

The unusual comet—which is to pass Earth again in the coming weeks—is only the third known object to visit us from outside ...

NASA released a trove of never-before-seen images of the interstellar comet 3I/ATLAS, unveiling new characteristics of the ...

Discovered in July this year, the comet known as 3I/Atlas is only the third confirmed object to visit our corner of the ...

A clear look at the discovery of 40,000 near-Earth asteroids, how scientists track them, and the missions working to keep our ...