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

More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however, NASA's ...

This Google Maps image captured in 2021 revealed a mysterious, triangular dark patch in the middle of the Pacific Ocean, ...

Discover how life on Earth evolved from muted tones to vibrant colours, and how scientists are uncovering the secrets of ...