Only twice in Earth's history have supermountains risen, and both times reshaped life forever.
Gödel found a time-travel solution in General Relativity, revealing spacetime can loop on itself.
Tardigrades can survive almost anything—even most of Mars. But one Martian chemical stops even them.
500+ pterosaur fossils found at Solnhofen may be hiding a dark secret distorting our view of them.
