For the first time in years, astronomers are seriously talking about adding a new member to the solar system’s planetary ...

The outer planets of the Solar System are swarmed by ice-wrapped moons. Some of these, such as Saturn’s moon Enceladus, are ...

The outer planets of the solar system are swarmed by ice-wrapped moons. Some of these, such as Saturn's moon Enceladus, are ...

Astronomers have spotted an intriguing cluster of objects in the Kuiper belt, an enormous, donut-shaped region of icy objects ...

NASA scientists were baffled after uncovering a rock on Mars that didn’t belong there — with a composition pointing to ...

What can dust grains that were returned to Earth from the asteroid Ryugu teach scientists about the early solar system? This is what a recent study published in AGU Advances hopes to address as an ...

Water isn't just delivered to planets by comets and asteroids — it can also be forged as worlds form, a new study finds.

One of the best-timed shots in TV history is an old clip by BBC's science presenter James Burke which has recently become ...

Theia, the world that helped form the Moon, came from the Solar System. Chemical clues in Earth and Moon rocks reveal this ...

Discover how scientists have used iron isotopes to determine the likely origin of the Mars-sized planet named Theia.

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

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.