Earth

New research suggests plate tectonic was triggered by the spreading of early continents and then eventually became a self-sustaining process.

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.