Oct. 28, 2008
The planets are gathering for spooky sunset sky show on Oct. 31st. Read today's story to find out where to look.
Oct. 22, 2008
Gamma-ray Burstsare by far the brightest and most powerful explosions in the Universe, second only to the Big Bang itself. So it might seem a bit surprising that a group of them has gone missing.
Oct. 21, 2008
Cosmic explosions known as Gamma-ray Burstsare curiously picky about where they explode. Shunning spiral galaxies like the Milky Way, Gamma-ray Burstsprefer to 'go off' in oddball star systems that astronomers are just beginning to understand.
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.