Earth

The way we define life matters in our search for life on other planets.

A new set of simulations showing how the Solar System formed reveals Mars is quite unlikely.

The Sentinel-1A spacecraft has captured a spectacular image of the recent earthquake that shook northern California.

A new study has revealed details about the composition of Earth’s atmosphere during the Archean eon, which lasted from around 4 billion years ago to 2.4 billion years ago.

The findings may lead to discoveries of similar water reserves on other planets.

A study of the diversity of radiolarian fossils paints a picture of the world's most lethal mass extinction.

More than four billion years ago, the surface of Earth was heavily reprocessed – or melted, mixed, and buried – as a result of giant asteroid impacts.

Is a planetary biosphere necessary for the long-term survival of life?

The new study suggests that the joining of North and South America changed the salinity of the Pacific Ocean and caused major ice sheet growth.

Scientists have estimated that up to half of the recent warming in Greenland and surrounding areas may be due to climate variations that originate in the tropical Pacific, and are not connected with the overall warming of the planet.