What has no eyes, walked on stilts and died in 'Paleo Pompeii'? This ancient weirdo.
The penultimate Moon mission, Apollo 16, almost didn't land. But a gutsy last-minute decision to go for it gave astronauts the chance to roam and sample the ancient lunar highlands, offering a window some 3.5 billion years into the Moon's past.
Vikings shipped walrus ivory from Greenland to Kyiv, ancient skulls show