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		Solar Wind Rips Up Martian Atmosphere The solar wind appears to be ripping big chunks of air from the atmosphere of Mars. This could help solve a longstanding mystery about the Red Planet. + Read More + Listen to Story

		Discovered: Cosmic Rays from a Mysterious, Nearby Object An international team of researchers has discovered a puzzling surplus of high-energy electrons bombarding Earth from space. The source of these cosmic rays is unknown, but it must be close to the solar system and it could be made of dark matter. + Read More + Listen to Story

		Hubble Directly Observes a Planet Orbiting Another Star NASA's Hubble Space Telescope has taken the first visible-light snapshot of a planet circling another star. The planet, called 'Fomalhaut b', orbits the bright southern star Fomalhaut, located 25 light-years from Earth. + Read More + Listen to Story

		NASA Begins Hunt for New Meteor Showers NASA astronomers have set up a monitoring station to scan the night sky for unknown or unexpected meteor showers--and they're finding more than they bargained for. + Read More + Listen to Story + en español

		Solar Cycle Update: The Sun Shows Signs of Life A surge of new-cycle sunspots in October may signal the beginning of the end of the ongoing solar minimum. + Read More + Listen to Story + en español

		Magnetic Portals Connect Earth to the Sun Researchers have discovered 'magnetic portals' forming high above Earth that can briefly connect our planet to the Sun. Not only are the portals common, one space physicist contends they form twice as often as anyone had previously imagined. + Read More + Listen to Story + en español




	The Case of the Missing Gamma-ray Bursts Gamma-ray bursts are 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. + Read More + Listen to Story + en español

	The Oddball Hosts of Gamma-ray Bursts Cosmic explosions known as gamma-ray bursts are curiously picky about where they explode. Shunning spiral galaxies like the Milky Way, gamma-ray bursts prefer to 'go off' in oddball star systems that astronomers are just beginning to understand. + Read More + Listen to Story + en español

	Brief Mystery: What are Short Gamma-ray Bursts? 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. + Read More + Listen to Story + en español

	Discovered: A New Kind of Pulsar 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. + Read More + Listen to Story + en español

	Gamma-ray Bursts: The Mystery Continues More than four decades after they were discovered, gamma-ray bursts continue 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. + Read More + Listen to Story + en español

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