New documentary looks for Cleopatra's tomb — do newfound coins and a submerged port in Egypt point the way?

Hundreds of coins that depict Cleopatra VII have been discovered in an Egyptian temple. The archaeologist who led the team ...
Scientific American

Deep-Earth Diamonds Reveal ‘Almost Impossible’ Chemistry

Seemingly contradictory materials are trapped together in two glittering diamonds from South Africa, shedding light on how ...