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

Astronomers found a young galaxy cluster with unexpectedly hot gas, suggesting cosmic structures formed faster than once ...

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

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

Nasa astronaut Don Pettit has captured a breathtaking view from space, blending vibrant auroras and glowing city lights with ...