Oct. 20, 2008
A curiously short-lived type of gamma-ray burst has astronomers puzzled. Leading experts discuss the clues at today's Gamma-ray Burst Symposium in Huntsville, Alabama.
Oct. 17, 2008
NASA's Fermi Gamma-ray Space Telescope has discovered a new kind of pulsar that hints at a previously unsuspected population of stars waiting to be found in the Milky Way.
Oct. 16, 2008
More than four decades after they were discovered, Gamma-ray Burstscontinue to mystify astrophysicists. Next week, experts from 25 countries will converge on Huntsville, Alabama, to discuss and debate clues to the biggest explosions since the Big Bang itself.
Oct. 10, 2008
Last month when scientists switched on the Large Hadron Collider, the world did not come to an end. In today's story, a particle physicist explains why not--and why Earth is safe from Black Holeswhen the collider is reactivated in the months ahead.
Oct. 9, 2008
A team of internationally renowned astronomers and opticians may have found a way to make 'unbelievably large' telescopes on the Moon.
Oct. 7, 2008
NASA's MESSENGER spacecraft flew past Mercury on Oct. 6th capturing amazing new images of never-before-seen terrain.
Oct. 2, 2008
Scientists using NASA's RHESSI spacecraft have measured the roundness of the sun with unprecedented precision, and they find that it is not a perfect sphere. During years of high solar activity the sun develops a thin "cantaloupe skin" that significantly increases its apparent oblateness.
Oct. 1, 2008
NASA's MESSENGER spacecraft is returning to Mercury. On Monday, Oct. 6, 2008, the probe will conduct the second of three planned flybys and photograph most of Mercury's remaining unseen surface.
Sept. 30, 2008
Astronomers who count sunspots have announced that 2008 has become the "blankest year" of the Space Age. Sunspot counts are at a 50-year low, signifying a deep minimum in the 11-year cycle of solar activity.
Sept. 23, 2008
In a briefing today at NASA headquarters, solar physicists announced that the solar wind is losing power. This development has repercussions across the solar system.