Why are there no craters on Earth

During the past 3.5 billion years, it is estimated that more than 80 bodies, larger than the dinosaur-killing asteroid that struck the Yucatan Peninsula 66 million years ago, have bombarded Earth.

Prehistoric skeleton confirms first American origins

Researchers said Thursday that they have identified a nearly complete skeleton in an underwater Mexican cave, a discovery that could help resolve a longstanding debate about the origins of the first people to inhabit the Americas.

Hurricane Paula forms, heads to Yucatan Peninsula

Hurricane Paula smashed homes and forced schools to close in Honduras on Tuesday.