This makes it difficult for researchers to find out what happened during Earth's early history, as most of the evidence was destroyed eons ago. However, scientists have discovered ancient rocks ...

The Rowton iron meteorite had to pass through the asteroid belt to reach Earth Meteorites ... but even when Stone Age hunters were carving weapons from rocks and bones, it may have been done ...

More than 4,000 naturally occurring minerals—inorganic solids that have a characteristic chemical composition and specific crystal structure—have been found on Earth. They are formed of simple ...