Scientists have discovered a rogue planet roaming the Milky Way after combining observations from Earth and a space telescope ...

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

The odds of discovering another Earth are looking slimmer than once believed. A growing body of evidence suggests that truly ...

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

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

In doing so, they found this orphan is within the same weight class as Saturn, strengthening the case that the galaxy teems ...

Choose your fighter for the origin of water on Earth! Was it always here or did it come to this planet from somewhere else in ...

The star system V1298 Tau reveals that many planets begin as large, low-density worlds that slowly shrink and shed their ...

While late M-stars are the easiest places to find Earth-sized planets, a new study suggests they are biological dead ends where animal life may never find enough fuel to evolve.

When scientists describe “Earth-like” planets, the phrase often brings to mind worlds scattered across the galaxy, quietly ...

They're called ghost particles for a reason. They're everywhere—trillions of them constantly stream through everything: our ...