Researchers have identified two starfish species in ancient ritual offerings unearthed 33 years ago in Tula, Mexico.

There's an area in China that's home to a huge trove of dinosaur fossils. It used to be thought it was formed through a ...

Chinese scientists have proposed the hypothesis that there might have once been a vast ocean on the surface of Mars. This ...

New research suggests that about 3.6 billion years ago, Mars featured vast water flows and a lake rivaling the size of the ...

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