Astronomers have finally weighed a wandering “rogue” planet, uncovering a Saturn-mass world flung into the galaxy after a ...

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

The Hubble Space Telescope has captured a spectacular new image of the largest and most unusual protoplanetary disk ever ...

A team of astronomers believes they may have spotted a serious candidate for a ninth planet in our Solar System. This object, located far beyond Neptune, could revolutionize our understanding of our ...

Astronomers tracking a nearby star system thought they had spotted an exoplanet reflecting light from its star. Then it vanished. Even stranger, another bright object appeared nearby. After studying ...

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

The interstellar object known as 3I/ATLAS, roughly the size of Manhattan, has recently demonstrated an unexpected non-gravitational acceleration as it swings past the Sun. This marks the first-ever ...

It's estimated there may be trillions of rogue planets wandering through the Milky Way, unbound to any star. Since detecting our first ones, we have been presented with an odd mystery.

Astronomers have been fascinated after spotting an object earlier this year that came from interstellar space as is now hurtling through our inner solar system. Regardless, it’s an interesting visitor ...

There's a class of objects in the cosmos that are neither stars, nor are they quite planets. And with this new research, scientists have improved our understanding of these elusive free-floating ...

Interstellar objects like 3I/ATLAS that have been captured in planet-forming discs around young stars could become the seeds of giant planets, bypassing a hurdle that theoretical models have ...