Planets usually stay close to their host stars, tracing steady paths shaped by gravity. Yet some planets break free and drift ...

Scientists measured mass and distance of free floating planet drifting through space without star for first time.

Far beyond Neptune, something heavy appears to be tugging on the outer solar system, bending the paths of distant icy worlds ...

While most planets that we are familiar with stick relatively close to their host star in a predictable orbit, some planets ...

Their analysis showed that the planet lies about 3,000 parsecs, or just under 10,000 light-years, from Earth. Its mass is ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

Dr. James O’Donoghue, a Japan-based planetary scientist, has made some incredible educational astronomy videos before. Including a video that showcases relative cosmic velocities to understand better ...

Astronomers photographed a baby planet, WISPIT 2b, during its formation process within a dusty ring around its star system.

Two small planets might be sculpting an enormous dust ring around the star Fomalhaut, a mere 25 light-years away from Earth. But it’s not too likely that either planet is the notorious Fomalhaut b, ...

Your weight changes on other planets and moons due to different gravitational pulls. Weight is how much gravity pulls on you; mass (amount of matter) stays the same. Newton's Law of Gravitation ...

NASA reports more than 400 gas giants – large gas planets like Jupiter or Saturn – have been discovered outside of Earth's solar system. However, the possibility that a gas planet could exist in the ...