Earthly lava tubes may offer insights into extraterrestrial life

Since 1997, NASA has successfully landed five rovers on Mars. The rovers have beamed back data that indicate life cannot survive on the Martian surface; we do not know whether life persists below the ground, however. For ...

DNA from sediment reveals epic history of Denisova Cave

In a landmark study, scientists from Australia, Germany and Russia have used ancient DNA recovered from sediment samples from Denisova Cave in Siberia to reveal a detailed occupational history of this unique site by three ...

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