Rocks store information from long ago. For instance, their composition can reveal the environmental conditions during their ...

For decades, Illinois has had a state bird and even a state tree, but a state rock hadn't ever been designated, despite more than 30 other states having an official rock or stone. However, that ...

Almost 20 years ago, New Scientist ran a feature called “Imagine Earth without people”, a thought experiment about what would happen to our planet over thousands of years if humanity suddenly ...