Three asteroids passed by Earth this week closer than the distance from us to the moon.
Scientists have revived the world’s largest known virus from a piece of Siberian permafrost over 30,000 years old.
In March 1954, members of an extremist Puerto Rican nationalist group launched a terrorist attack protesting U.S. control of the island.
Though caused by the same pathogen, the deadly Plague of Justinian appears to have emerged separately from later plagues such as the Black Death.
British researchers have uncovered what may be King Alfred the Great’s pelvic bone.
Take a closer look at the world’s first communist head of state.
Explore eight surprising facts about the Man of Steel.
More U.S. civilians died in the bombing of Pan Am Flight 103 over Lockerbie, Scotland, which took place 25 years ago from Saturday, than in any other terrorist attack except 9/11.