May 24, 2013 The Ring Nebula, whose iconic shape and large size make it a favorite of amateur astronomers, can now be seen in new detail, after NASA's Hubble Space Telescope captured a sharp image of the nebula. Researchers say the new clarity reveals details that were previously unseen, and a structure that's more complex than scientists believed.
May 24, 2013 Populations of frogs, salamanders and other amphibians are declining at an average rate of 3.7 percent each year, according to a U.S. Geological Survey study released this week.
May 24, 2013 Memory is malleable, dynamic and elusive. When we tap into our memories, where's the line between fact and fiction? Can our memory play tricks on us? Can we train it to be more accurate? TED speakers discuss how a nimble memory can improve your life, and how a frail one might ruin someone else's.
May 24, 2013 You, you with your lips, throat, cheek muscles and hands, you, with no effort can drink a glass of water. But what about your cat? Your dog? They don't have the advantages you do. Nor do pigeons. And yet, through ways both brilliant and mysterious, they too can drink. Here are their secrets.