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

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...

In January 2025, Venus, Mars, Jupiter, Saturn, Uranus and Neptune were all visible in the night sky. And in February, 2025, ...

Researchers present an alternative to the long-held “hard steps” theory to explain the evolution of complex life, suggesting ...

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

Astronomers for the first time have deciphered the three-dimensional structure of the atmosphere of a planet beyond our solar ...

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

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