The world record for the highest skydive is held by Joe Kittinger, an Air Force Captain who in 1960 jumped out of a balloon from an altitude of 102,800 feet; about 20 miles up, or three times as high as most jet airplanes fly. At that height, sky diving is perhaps better termed "space diving" [...]

A video by a Japanese artist captures the entire history of nuclear explosions on Earth.

A new poll of Americans shows that support for revolutionary, carbon-cutting energy policies is strong, even though disagreement about the causes behind global warming lingers.

Submitted by guest blogger Debbie Salamone of the Pew Campaign to End Overfishing in the Southeast. Olympic athletes are earning their medals. But there's a different sort of race to greatness under way. It's the United Kingdom vs. the United States of America for the title of creator of the planet...

Civilizations in the Arabian Peninsula and southern Iran found refuge during periodic dry spells along an ancient Gulf coastline.

Now that we have the Classic Mayan's example to learn from, along with all sorts of other advanced scientific understanding of human effects on the planet, can we do any better?

What do you get when you cross aboriginal wisdom with Google Maps? Newly discovered meteor impact craters, of course! Duane Hamacher studies aboriginal astronomy as MacQuarie University in Sydney; already a very cool job. But things got even better when Hamacher followed up on a legend of the Arrer...

You've got to hand it to folks who love extreme water sports: when the weather gets nasty -- like life-threatening nasty -- they go out and play. Case in point, Patrick Lawler filming his buddy, David King Rowe dancing through the breakers on a beach in California last month. The fact that the...