The Solar System, home to Earth and countless other fascinating planets and moons, exists within the Milky Way galaxy. But ...

A team led by UdeM researchers confirms a fifth potentially habitable planet around L 98-59, a red dwarf 35 light-years away.

Of all the extrasolar planetary systems detected by astronomers in recent years, the star 47 Ursae Majoris and its known companions, two Jupiter-sized planets, is the one that most closely resembles ...

Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our ...

The James Webb telescope has made another stunning discovery -- this time of a massive planet that could potentially sustain ...

CAPE CANAVERAL, Fla. — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, researchers say. ABC News. Live. Video. Shows. Shop. Log In. Stream on.

Researchers from the Université de Montréal have confirmed a fifth potentially habitable planet around L 98-59, a red dwarf ...

For the first time, astronomers have witnessed the very first solid particles forming around a baby sun-like star, HOPS-315, over 1,300 light-years away. Using Nasa’s James Webb Telescope and ALMA in ...

The exoplanet, a planet beyond our solar system, has been dubbed TWA 7b after NASA's James Webb Space Telescope captured evidence of it.

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.