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How Much Mass Makes a Black Hole? Astronomers Challenge Current Theories
August 18, 2010 — Astronomers have for the first time demonstrated that a magnetar -- an unusual type of neutron star -- was formed from a star with at least 40 times as much mass as the Sun. The result presents great ... > full story -
Cosmic Accelerators Discovered in Our Galaxy
August 17, 2010 — Physicists have discovered evidence of "natural nuclear accelerators" at work in our Milky Way galaxy, based on an analysis of data from the world's largest cosmic ray ... > full story -
NGC 4696: A Cosmic Question Mark
August 12, 2010 — Curling around itself like a question mark, the unusual looking galaxy NGC 4696 itself begs many questions. Why is it such a strange shape? What are the odd, capillary-like filaments that stretch out ... > full story -
Giant Ultraviolet Rings Found in Resurrected Galaxies
August 11, 2010 — Astronomers have found mysterious, giant loops of ultraviolet light in aged, massive galaxies, which seem to have a second lease on life. Somehow these "over-the-hill galaxies" have been infused with ... > full story -
Ambitious Survey Spots Stellar Nurseries
August 11, 2010 — Astronomers scanning the skies as part of ESO's VISTA Magellanic Cloud survey have now obtained a spectacular picture of the Tarantula Nebula in our neighbouring galaxy, the Large Magellanic Cloud. ... > full story -
NASA's Great Observatories Witness a Galactic Spectacle
August 7, 2010 — A new image of two tangled galaxies has been released by NASA's Great Observatories. The Antennae galaxies, located about 62 million light-years from Earth, are shown in a new composite image from ... > full story -
Hyperfast Star Was Booted from Milky Way
July 22, 2010 — A hundred million years ago, a triple-star system was traveling through the bustling center of our Milky Way galaxy when it made a life-changing misstep. The trio wandered too close to the galaxy's ... > full story -
Black Hole Jerked Around Twice
July 21, 2010 — Scientists have found evidence that a giant black hole has been jerked around twice, causing its spin axis to point in a different direction from before. This discovery, made with new data from ... > full story -
Astronomers Discover an Unusual Cosmic Lens
July 16, 2010 — Astronomers have discovered the first known case of a distant galaxy being magnified by a quasar acting as a gravitational ... > full story -
Refining a Cosmic Clock: Particle Accelerator Research Helps Narrow Down the Age of Our Galaxy
July 15, 2010 — A study of processes that affect the abundance of osmium will reduce the uncertainty that has plagued measurements of the age of the Milky ... > full story
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