All Articles Tagged As: supernova
 | Super-luminous stellar explosion observed via Caltech's Palomar Observatory, possibly resulting in a quark star ...> Full Article |
 | X-ray observatory has re-discovered an ignored celestial gem ...> Full Article |
 | A supernova that exploded in the 16th century and was visible during daylight for 2 weeks, is now revealing some of its secrets. ...> Full Article |
 | NASA's Spitzer Space Telescope has found a bizarre ring of material around the magnetic remains of a star that blasted to smithereens. ...> Full Article |
 | Astronomers have used the Swift satellite to observe the first moments of a supernova explosion as it happens. ...> Full Article |
 | Scientists to work on one of the world's most powerful supercomputers, simulating an event that takes less than five seconds. ...> Full Article |
A new space mission, due to launch this month, is going to shed light on some of the most extreme astrophysical processes in nature - including pulsars, remnants of supernovae, and supermassive black holes. It could even help us comprehend the origin and distribution of dark matter
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 | Astronomers have spied a faraway star system that is so unusual, it was one of a kind -- until its discovery helped them pinpoint a second one that was much closer to home. ...> Full Article |
 | Astronomers have made the best ever determination of the power of a supernova explosion that was visible from Earth long ago. By observing the remnant of a supernova and a light echo from the initial outburst, they have established the validity of a powerful new method for studying supernovas. ...> Full Article |
Interstellar space may be strewn with tiny whiskers of carbon, dimming the light of far-away objects. This discovery by scientists at the Carnegie Institution may have implications for the "dark energy" hypothesis, proposed a decade ago in part to explain the unexpected dimness of certain stellar explosions called Type1a supernovae.
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 | Using data from NASA's Chandra X-ray Observatory, scientists have reported the possible detection of a binary star system that was later destroyed in a supernova explosion. The new method they used provides great future promise for finding the detailed origin of these important cosmic events. ...> Full Article |
 | Scientists hope that a new supercomputer being built by Syracuse University's Department of Physics may help them identify the sound of a celestial black hole. The supercomputer, dubbed SUGAR (SU Gravitational and Relativity Cluster), will soon receive massive amounts of data from the California Institute of Technology (Caltech) that was collected over a two-year period at the Laser Interferometer Gravitational-Wave Observatory (LIGO). ...> Full Article |
 | First results from a new NASA-funded scientific instrument at the W. M. Keck Observatory in Hawaii are helping scientists overturn long-standing assumptions about powerful explosions called novae and have produced the first unified model for a nearby nova called RS Ophiuchi. ...> Full Article |
 | A strange and violent fate awaits a white dwarf star that wanders too close to a moderately massive black hole. According to a new study, the black hole's gravitational pull on the white dwarf would cause tidal forces sufficient to disrupt the stellar remnant and reignite nuclear burning in it, giving rise to a supernova explosion with an unusual appearance. Observations of such supernovae could confirm the existence of intermediate-mass black holes, currently the subject of much debate among astronomers. ...> Full Article |
First results from a new NASA-funded scientific instrument at the W. M. Keck Observatory in Hawaii are helping scientists overturn long-standing assumptions about powerful explosions called novae and have produced the first unified model for a nearby nova called RS Ophiuchi.
...> Full Article
 | Astronomers have at last found definitive evidence that the universe's first dust – the celestial stuff that seeded future generations of stars and planets – was forged in the explosions of massive stars. ...> Full Article |
 | A supernova observed last year was so bright--about 100 times as luminous as a typical supernova--that it challenged the theoretical understanding of what causes supernovae. But Stan Woosley, professor of astronomy and astrophysics at the University of California, Santa Cruz, had an idea that he thought could account for it--an extremely massive star that undergoes repeated explosions. When Woosley and two colleages worked out the detailed calculations for their model, the results matched the observations of the supernova known as SN 2006gy, the brightest ever recorded. ...> Full Article |
 | Astronomers have found that a supernova discovered last year was caused by two colliding white dwarf stars. The white dwarfs were siblings orbiting each other. They slowly spiraled inward until they merged, touching off a titanic explosion. Observations show the strongest evidence yet of what was, until now, a purely theoretical mechanism for creating a supernova. ...> Full Article |
 | Exploding stars that light the way for research on dark energy aren't as powerful or bright, on average, as they once were. ...> Full Article |
 | A spectacular new image shows how complex a star's afterlife can be. ...> Full Article |
Scientists have helped to design and create a pioneering instrument that will provide clues that could help to understand the origins of the elements in the Universe.
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 | Recent observations from NASA and Japanese X-ray observatories have helped clarify one of the long-standing mysteries in astronomy -- the origin of cosmic rays. ...> Full Article |
Undergraduate astronomy students at the University of Washington combing through images from a specialized telescope have discovered more than 1,300 asteroids that had never before been observed. That is about one out of every 250 known objects in the solar system.
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 | Distant supernovae an average of 12 per cent brighter ...> Full Article |
 | Stars do not like to be alone. Indeed, most stars are members of a binary system, in which two stars circle around each other in an apparently never-ending cosmic ballet. But sometimes, things can go wrong. When the dancing stars are too close to each other, one of them can start devouring its partner. If the vampire star is a white dwarf â€" a burned-out star that was once like our Sun â€" this greed can lead to a cosmic catastrophe: the white dwarf explodes as a Type Ia supernova. ...> Full Article |
 | New, detailed observations of a supernova show evidence that a white dwarf star "fed" off a red giant to gain the critical mass needed for explosion. ...> Full Article |
 | How is matter created? What happens when stars die? Is the universe shrinking, or is it expanding? For decades, scientists have been looking for answers to such "big picture" questions. ...> Full Article |
 | A team of European and American astronomers has announced the discovery of the best evidence yet for the nature of the star systems that explode as type Ia supernovae. The team obtained a unique set of observations with the European Southern Observatory's Very Large Telescope and the Keck I 10-meter telescope in Hawaii. ...> Full Article |
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