Energy released from an exploding star reveals itself in an image of stars and a stripe.

Ecotourism may help save the panoply of wildlife in Madagascar.

Rock art in Australia is matched with early documentations of human tattoos.

The oven in the Mars lander may only have one more chance to test soil for signs of life.

Watermelon can help relax the body's blood vessels, similar to how Viagra works.

Around 4,000 years ago, a skilled acrobat was killed ceremonially in what is now Syria.

After a four-year tour of Saturn, the Cassini probe is ready for round two.

Millions of textbooks get the shape of our solar system wrong, suggests new research.

Schemes to capture carbon dioxide are trickier than they appear, warn experts.

On the moon, dust isn't just an allergen. But how toxic is it? NASA wants to know.

Could melting in Greenland destabilize ice in West Antarctica?

Stone Age cave dwellers painted where acoustic properties were best.

A newly discovered chameleon spends most of its year-long life in its egg.