Scientists think a small rock discovered near Earth last August was hurled into space by an ancient impact on the lunar surface.

An extraordinary journey: The atomic make-up of small crystals in the rock reveals its origin It's an unassuming rock, greenish in colour, and just over 4cm in its longest dimension. And yet this ...

Scientists say they have discovered humanity's oldest known drawing on a small fragment of rock in South Africa. The drawing is about 73,000 years old, and shows cross-hatch lines sketched onto ...