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April 22, 2013

Dying Supergiant Stars Implicated In Hours-Long Gamma-Ray Bursts

Data Presented At Symposium In Nashville, TN

Three unusually long-lasting stellar explosions discovered by NASA’s Swift satellite represent a previously unrecognized class of gamma-ray bursts (GRBs). Two international teams of astronomers studying these events conclude that they likely arose from the catastrophic death of supergiant stars hundreds of times larger than the sun.

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Another Win For Civilian Space: Orbital Sciences Test Launches Antares

Despite NASA's Woes, American Space Industry Is Building Alternatives

Orbital Sciences Corporation launched its Antares rocket at 5:00 p.m. EDT, Sunday, from the new Mid-Atlantic Regional Spaceport Pad-0A at the agency's Wallops Flight Facility in Virginia. The test flight was the first launch from the pad at Wallops and was the first flight of Antares, which delivered the equivalent mass of a spacecraft, a so-called mass simulated payload, into Earth's orbit. Lift-off took place at 1700 (EDT) followed by payload separation approximately 10 minutes later and mission completion at about 18 minutes after launch, once the rocket’s upper stage completed planned maneuvers to distance itself from the payload. The test flight demonstrated all operational aspects of the ne

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