Dec 22 The Science of Snowflakes, and Why No Two Are Alike Peer through a magnifying glass at a snowflake, and you'll see an ice creation more elaborate than anything Martha Stewart could cut from folded paper. So what's behind the snowflake's unique and elaborate shape? The snowflakes that settle… Continue reading
Dec 21 Watch New EPA Rules Target Power Plants’ Toxic Mercury Emissions The Environmental Protection Agency unveiled new standards Wednesday to curb mercury emissions from coal- and oil-fueled power plants around the country. Gwen Ifill discusses the announcement with the Electric Reliability Coordinating Council's Scott Segal and the Natural Resources Defense Council's… Continue watching
Dec 21 The Science of Snow Crystals By Jenny Marder It's true: no two snowflakes are alike. But they come in more shapes than you might think. Check out some samples in this slideshow. Continue reading
Dec 20 Scientists Find Smallest Exoplanets Yet This 'planet line-up' displays the first two Earth-size extrasolar planets, Kepler-20 e and Kepler-20 f, together with the Earth and Venus, ranked by their size. Image by Tim Pyle. Scientists have found two fiery hot, Earth-sized exoplanets whizzing… Continue reading
Dec 19 Human Waste Killing Caribbean Coral The bright orange Elkhorn coral off the coast of Florida have been devastated by a disease that scientists have tracked to human sewage. Elkhorn coral was at one time the most common coral in the Caribbean, but has… Continue reading
Dec 16 5 Resources on Accused WikiLeaks Source Bradley Manning’s Trial Several dozen supporters of U.S. Army Private Bradley Manning gathered Friday at the entrance to Fort Meade, where his preliminary hearing is taking place. Photo by Chip Somodevilla/Getty Images. Months of debate and demonstrations over the flood of classified… Continue reading
Dec 15 Watch Spare Parts for Humans: Tissue Engineers Aim for Lab-Grown Limbs, Lungs and More A new research breakthrough has enabled scientists to grow human tissue to repair or replace organs, and someday, maybe even limbs. Science correspondent Miles O'Brien reports. Continue watching
Dec 15 Spacecraft Snaps Giant Asteroid Vesta Up Close In mid-July, NASA's Dawn spacecraft swung into a yearlong orbit around Vesta, the second-most massive object in the asteroid belt between Mars and Jupiter. Since then, it has been snapping pictures of the protoplanet's rugged surface and beaming them… Continue reading
Dec 15 Asteroid Vesta Revealed By Jenny Marder On December 12, Dawn maneuvered into its closest orbit yet around giant asteroid Vesta. The spacecraft is now circling Vesta at an altitude of about 130 miles. Since NASA's spacecraft dawn snapped into orbit around the object, it has been… Continue reading
Dec 14 The Daily Frame A worker at the "European Organization for Nuclear Research walks past a mural representation of the ATLAS Large Hadron Collider in Geneva, Switzerland. Continue reading