What Lit Up The Universe? Astronomers May Be On The Brink Of An Answer

Most scientists can see, hear, smell, touch or even taste their research. But astronomers can only study light — photons traveling billions of light-years across the cosmos before getting scooped up by an array of radio dishes or a single parabolic mirror orbiting the Earth. » 8/28/14 9:20am Today 9:20am

The U.S. Southwest Could Soon Experience Decades-Long "Megadroughts"

During the 1930s, America's High Plains were ravaged by an 8-year long drought, resulting in the dreaded Dust Bowl. Scientists now warn that, owing to global warming, this could happen again — and that by next century many parts of the world could experience "megadroughts" lasting for several decades. » 8/28/14 8:00am Today 8:00am

Physicists Have A Simple Answer For How Egyptians Built The Pyramids

The Great Pyramid of Giza is the last of the ancient world's "seven wonders." The 4,500-year-old structure was constructed from 2.4 million limestone blocks, most weighing around 2.5 tons. Today we're still debating how the Egyptians managed to move these blocks from local quarries. Now scientists have a new… » 8/27/14 3:20pm Yesterday 3:20pm

Vintage Shark Illustrations Are Jaw-Droppingly Gorgeous

The Biodiversity Heritage Library works to make biodiversity-related literature freely available to the world. They've got thousands of image libraries to peruse, but one of the richest is their collection of shark illustrations, with more than 370 pages. Here are a few of our favorites. » 8/27/14 6:08pm Yesterday 6:08pm

Americans Clearly Don't Understand How Deadly HPV Is

HPV is the most common sexually transmitted disease in America. With the exception of HIV, it is also the most fatal. But for almost a decade, we've had a vaccine that prevents HPV infection and, by extension, the deadly cancers it causes. So why aren't American adolescents getting access to this vaccine? » 8/27/14 11:41am Yesterday 11:41am