A feud between the revolutionary group MOVE and Philadelphia officials reached a bloody culmination.
Inspired by dinosaurs, Alex goes on a journey to stabilize collagen and create leather...with eggs.
Long-extinct dinosaurs may still haunt us—possibly driving us to age faster than any vertebrate.
Earth's core: solid or liquid? Yes — we know more about distant galaxies than our own interior.
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.