"When Paul Vasquez reacted to a giant double rainbow outside his California home, he asked: 'What does it mean?' We have...

This is absolutely breathtaking. The branching and patterning is absolutely amazing. Lightning may be only slightly less cool than blood vessels. Only slightly....

Scientists celebrated Sunday after finding more than 700 suspected new planets -- including up to 140 similar in size to Earth -- in just six weeks of using a powerful new space observatory.

One of the best preserved craters yet found on Earth, the Kamil crater was initially discovered in February during a survey of satellite images on Google Earth. Researchers think the crater formed within the past couple thousand years.

Archaeologists have unearthed what appears to be a dildo dating from the Stone Age in Sweden.

Awesome Physics Simulations (vid) - ...

(PhysOrg.com) -- US scientists working for the experimental arm of the Pentagon have developed artificial blood for use in transfusions for wounded soldiers in battlefields. The blood cells are said to be functionally indistinguishable from normal blood cells and could end forever the problem of blood ...

Physics enthusiasts may have felt a rush of anticipation over the last week, as the rumormill and blogosphere got all a-twitter (if you'll pardon the expression) over the idea that Fermilab had discovered the Higgs boson. Well, it turns out that these rumors were just that.

Donor 45 is a 65-year-old gay,African-American man who has been living with HIV (but healthy) for 20 years.He is part of a small group of people who are infected with HIV, but whose bodies have managed to naturally stave off symptoms of the illness. Some of these people called long-term non-progressors, end up with almost undetectable virus levels.

It’s an age-old puzzle that’s stumped generations of scientists.