Astronomers have peered into an alien planet's atmosphere and found extreme weather unlike anything in the solar system.

A new study rewrites the story of human evolution, suggesting that intelligent life is not rare but a natural planetary ...

The research has been published in the peer-reviewed journal Nature.

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar system was the only planetary system known to humans. We had no proof other ...

The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe.

The gas giant WASP-121b, also known as Tylos, has an atmospheric structure unlike any we have ever seen, and the fastest ...

Earth's oceans may have been green for billions of years until the first photosynthetic organisms flooded our atmosphere with ...

White dwarf stars could host habitable planets. Fast planetary rotation reduces cloud cover, keeping surface temperatures stable.

Purple Earth Hypothesis suggests Earth was once a purple planet. Early microbes used retinal, not chlorophyll, for ...

Researchers from Penn State University proposed in a new academic paper that human-like lifeforms could arise as a logical consequence of a planet’s development — contradicting the long-held “hard ...