The famous Ring Nebula is shown here in striking detail, in a composite image made from images from NASA's Hubble Space Telescope and infrared data from telescopes on Earth.
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.
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.
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.
May 23, 2013 A new study unravels the mystery of a peculiar transformation: sometime in the 1990s, the insects developed a sudden aversion to sweet-tasting poisons.
May 23, 2013 A test of third-year medical students in North Carolina revealed biases against the obese. The author of the study says these thoughts, often subconscious, could affect how doctors treat their patients and whether those patients trust them.
May 23, 2013 The revival is partly based on the humble sour fruit's growing reputation as a superfood. And in Michigan, a scientist is on a quest to introduce a whole new world of hardier, tastier tart cherries by breeding American trees with ancestral varieties from Eastern Europe.
May 23, 2013 At nearly seven miles below the water's surface, the Mariana Trench is the deepest spot in Earth's oceans. And the site north of Guam is where director and explorer James Cameron fulfilled a longtime goal of reaching the bottom in a manned craft.