Mar 22 Watch 6:28 Climate change is killing the Great Barrier Reef By PBS News Hour Coral reefs are more than examples of natural beauty; they harbor fish that feed millions and shield us against storms and floods. Australia's Great Barrier Reef, the largest living structure on the planet, is dying. As ocean waters steadily warm,… Continue watching
Mar 20 Why looking at the sun can make you sneeze By Julia Griffin Do you ever sneeze when you walk into sunlight? If so, you may have a seemingly harmless disorder and you're hardly alone. Continue reading
Mar 16 Scientists have discovered 4.2 billion-year-old remnants of the Earth’s first crust By Andrew Wagner Scientists find 4.2 billion-year-old remnants of the planet’s earliest crust right in our continental backyard. Continue reading
Mar 15 Watch 2:17 This artist brings dinosaurs back to life By PBS News Hour In our NewsHour Shares moment of the day, a childhood love of prehistoric creatures inspired a unique and prolific career for artist Julius Csotonyi, who uses his skills to bring fossilized bones back to life. Continue watching
Mar 15 How global warming leads to tiny horses and other shrinking mammals By Nsikan Akpan Ancient teeth reveal when the Earth gets warmer, mammals shrink consistently in size. Continue reading
Mar 14 This Pi Day, use math to beat your friends at classic toy games By Kristin Hugo On this most circular of pi days, we present three classic toys -- hula hoops, yo-yo's and Connect Four -- and explore their mechanics with mathematicians and physicists. Continue reading
Mar 10 Why did humans evolve big brains? We don’t know, but math can help By Kristin Hugo Evolutionary biologists can use this new equation to test their ideas for how the human brain got so big. Continue reading
Mar 06 Watch 3:48 Student scientists devise experiment that will really take off By PBS News Hour Students from 21 schools across the U.S. and Canada competed for the chance to have their science experiments sent to the International Space Station. One of the student teams selected, from East High School in Rochester, New York, designed an… Continue watching
Mar 02 Click this linky and learn the secrets of the Slinky By Andrew Wagner A Princeton professor offers new math behind why a Slinky appears to hang in midair when dropped. Continue reading
Feb 28 Watch 3:16 How scientists brought bison back to Banff By PBS News Hour In our NewsHour Shares moment of the day, bison have returned to Canada's Banff National Park after being wiped out more than a century ago. A biologist explains the efforts to help anchor a herd to its new home. Continue watching