Type Ia supernovae, one of the most dazzling phenomena in the universe, are produced when small dense stars called white dwarfs explode with ferocious intensity. At their peak, these supernovae can outshine an entire galaxy. ...
Astronomy
May 20, 2015
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New observations of a recently exploded star are confirming supercomputer model predictions made at Caltech that the deaths of stellar giants are lopsided affairs in which debris and the stars' cores hurtle off in opposite ...
Astronomy
May 7, 2015
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(Phys.org) —Astronomers using ESA's Integral gamma-ray observatory have demonstrated beyond doubt that dead stars known as white dwarfs can reignite and explode as supernovae. The finding came after the unique signature ...
Astronomy
Aug 28, 2014
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Since 2006, when NASA's Stardust spacecraft delivered its aerogel and aluminum foil dust collectors to Earth, a team of scientists has combed through the collectors in search of rare, microscopic particles of interstellar ...
Space Exploration
Aug 14, 2014
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(Phys.org) —Using NASA's Hubble Space Telescope, a team of astronomers has spotted a star system that could have left behind a "zombie star" after an unusually weak supernova explosion.
Astronomy
Aug 6, 2014
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A group of astronomers has been able to follow stardust being made in real time—during the aftermath of a supernova explosion. For the first time they show that these cosmic dust factories make their grains in a two-stage ...
Astronomy
Jul 9, 2014
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Magnetars are the super-dense remnants of supernova explosions. They are the strongest magnets known in the Universe—millions of times more powerful than the strongest magnets on Earth. A team of astronomers using ESO's ...
Astronomy
May 14, 2014
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(Phys.org) —What happens when massive stars collapse? One potential result is a core-collapse supernova. Astronomers can make observations of such events that tell us what is happening on the surface of a star when it explodes ...
Astronomy
May 2, 2014
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(Phys.org) —Researchers including a Texas Tech University physicist have intently studied the closest type Ia supernova discovered in a generation. The proximity to Earth could yield better understanding of this particular ...
Astronomy
Mar 25, 2014
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(Phys.org) —Australian astronomers have combined all observations of supernovae ever made to determine that the strength of gravity has remained unchanged over the last nine billion years.
Astronomy
Mar 23, 2014
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