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.
April 24, 2013 Mesmerizing. Dazzling. Gorgeous. Pick your word. NASA's collection of images taken of the sun over the course of three years is getting rave reviews.
March 15, 2013 Scientists say the discovery of more carbon than oxygen and no methane in the atmosphere of a gas giant favors one theory of solar system formation.
March 11, 2013 Criticism over a study's findings has not deterred researchers from saying their work may represent one of the biggest scientific breakthroughs in hundreds of years: "fossilized biological structures" in a meteorite.
February 20, 2013 Satellites help track storms, power the GPS signals in our cars and phones and beam TV signals around the world. But they also send back striking, totally disarming images of planet Earth.
January 28, 2013 The nation's official media reports the primate was sent up about 75 miles. It reportedly survived the trip. Iran says it's aiming to launch a manned mission in five to eight years. Other nations are concerned that the program is really aimed at developing long-range missiles.
December 13, 2012 Commercial space travel is becoming a reality. Now people who have longed to go into space can buy a ticket, if they've got the cash. But are they healthy enough to make the voyage?
October 16, 2012 Astronomers have finally discovered a planet orbiting Alpha Centauri, the nearest star to the Sun. At a mere 4.4 light years away, scientists have long hoped that a planet would be found around this closest of stellar neighbors.
September 26, 2012 The notion that the Big Bang is like an exploding bomb is completely wrong. But what, then, lies beyond the edge of space? Can we ever know whether the Universe is infinite?
August 15, 2012 NASA's Curiosity rover will soon begin to search for signs of life, past or present, on the red planet. But can we make sense of life in strange places? And if we don't find it, what will it mean to us?
July 31, 2012 Should we be sending emissaries (and colonists) to the stars. Yes! Just remember that those who leave won't really be coming back.
July 25, 2012 Contributor Adam Frank has an op-ed in The New York Times that argues we're not going to be traveling the cosmos any time soon, if ever.
July 10, 2012 Have we heard from ET? Even if we did, that doesn't tell us anything about UFOs. Still, it can't hurt to try and talk to them, right? Commentator Adam Frank share his message for beings from beyond our Earth.