Have you ever wondered what our solar system looked like 3.8 billion years ago? Were the planets we know today anything like ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory about the possibility of a giant ninth planet. The dwarf planet's existence ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

Centimeter-sized pebbles have been detected in protoplanetary discs using e‑MERLIN, filling in a critical phase of planet ...

This artist’s concept depicts one of the solar system’s inner planets slamming into Earth after being nudged on a collision course by a passing star. Such a world-shattering cataclysm is ...

Snapchat Friend Solar System is a premium feature that lets you visualize your closest friends as planets that revolve around you.

A fascinating glimpse into how a solar system like our own is born has been revealed with the detection of planet-forming ...

For a few evenings around 28 February, every planet in the solar system will be visible in the night sky, thanks to a rare great planetary alignment. Here's how to make sure you don't miss this ...

This process, called accretion, is how everything in the solar system – planets, moons, comets and asteroids – came into being. Telescopes can see young solar systems being born.

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, researchers say.

The planets in our solar system orbit the sun in roughly the same plane, known as the ecliptic, which is tilted relative to Earth's equator by about 23.5 degrees.