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.

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

Astronomers have spotted an Earth-sized planet drifting alone through the Milky Way, detected briefly by bent starlight, ...

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

Planets that orbit white dwarf stars should be too hot to host alien life, theories suggest. But a new study accounting for Einstein's general relativity may rewrite that rule. When you purchase ...