The record-breaking mission offers an unprecedented opportunity to study the geology of our planet’s largest layer.

At 2.5 billion years old and weighing in at 2.5 tonnes, the banded iron formation is so heavy that Museum engineers had to reinforce the floor underneath it in Hintze Hall. 'The rock tells a ...

A new study has upended a long-held theory that asteroids brought water to Earth – as it turns out it may have always been ...

Some of the unusual rocks carry stories about water on Mars. One has hints of long-gone microbes. All tell of a dynamic, complex planet.