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Latest Supernovae Stories

Black Hole Radiation Blasted Earth During 8th Century
2013-01-21 11:56:25

Lee Rannals for redOrbit.com - Your Universe Online According to a new study, black hole cosmic radiation blasted into the Earth back in the 8th century. Japanese astrophysicist Fusa Miyake discovered last year clues for the strange event located in the rings of ancient cedar trees that dated back to either 774 or 775 AD. Researchers teamed together to determine what had caused the surge in carbon-14 in the rings and found no evidence of a supernova, as they had expected. The...

Manatee Nebula Named For Its Resemblance To The Sea Cow
2013-01-19 07:04:37

[ Watch the Video: A Microquasar Makes a Giant Manatee Nebula ] redOrbit Staff & Wire Reports - Your Universe Online Thanks to a powerful National Science Foundation (NSF) telescope and an observation made by one National Radio Astronomy Observatory (NRAO) official, the W50 nebula located approximately 18,000 light years away has a new name — the Manatee Nebula. Images of the massive supernova remnant captured recently by the NSF´s Karl G. Jansky Very Large Array (VLA)...

Astronomers Watch A Massive Star End Its Life
2013-01-11 06:04:52

April Flowers for redOrbit.com -- Your Universe Online Astronomers announced this week that a massive star they have been watching repeatedly mimic a supernova since 2009 has finally exploded for real. The team, led by the University of Arizona, presented their findings to the American Astronomical Society meeting and they will be published in the Monthly Notices of the Royal Astronomical Society. This new study provides critical information on the final death throes of massive stars in...

Distant Supernova Dates Back To 10 Billion Years
2013-01-10 08:09:44

April Flowers for redOrbit.com - Your Universe Online Have you ever wished for a time machine to be able to travel to the distant past? What about a "Wayback Television Set" that would allow you to watch an entire month of ancient prehistory in real time? Berkeley Lab´s David Rubin gave just such a scenario to attendees at the American Astronomical Society meeting this week when he unveiled the discovery of a striking astronomical object. Rubin announced a Type Ia supernova with...

Supernova Explosions Simulated With Complex Computer Code
2013-01-09 08:00:01

April Flowers for redOrbit.com - Your Universe Online Wanting to bridge the gap between what is known about exploring stars and the remnants left behind thousands of years later, two University of Texas at Arlington students and their colleagues are trying something new — using SNSPH, a complex computer code developed at Los Alamos National Laboratory. The two students, Carola I. Ellinger, a post-doctoral researcher at UT Arlington, and Sangwook Park, an assistant professor in the...

NASA NuSTAR Catches Glimpse Of Supernova Remnant, Black Holes
2013-01-08 12:04:09

redOrbit Staff & Wire Reports - Your Universe Online NASA has released a pair of new images captured by the Nuclear Spectroscopic Telescope Array (NuSTAR) — one depicting a pair of black holes lurking inside a spiral galaxy, and the other featuring a look at the supernova remnant Cassiopeia A. The two pictures, which were revealed Monday at the American Astronomical Society (AAS) meeting in Long Beach, California, “showcase why NuSTAR is giving us an unprecedented look...

2013-01-07 20:21:05

WASHINGTON, Jan. 7, 2013 /PRNewswire-USNewswire/ -- NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, set its X-ray eyes on a spiral galaxy and caught the brilliant glow of two black holes lurking inside. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The new image is being released Monday along with NuSTAR's view of the supernova remnant Cassiopeia A, at the American Astronomical Society meeting in Long Beach, Calif. "These new images showcase why NuSTAR...

Scientists Deduce Contents Of Cosmic Mystery Box
2013-01-01 10:16:02

April Flowers for redOrbit.com - Your Universe Online Science teachers in grade school sometimes hand out "mystery boxes," which contain ramps, barriers and a loose marble. Rotating the marble and feeling it hang up or drop, the students begin to deduce the contents of the box. Scientists who are trying to understand why tiny particles rain down from space face a similar dilemma, but on a much grander scale. Their mystery box is a hundred thousand light years across, and the only clues...

Evidence Found That Exploding Star Gave Birth To Solar System
2012-12-17 15:00:11

Lee Rannals for redOrbit.com — Your Universe Online University of Chicago researchers wrote in the journal Earth and Planetary Science Letters that they found the radioactive isotope iron 60 low in abundance, and well mixed in solar system material, leading to the notion that the force of an exploding star prompted the formation of the Solar System. Scientists look for remnants of stellar explosions in meteorites to help determine the conditions under which the solar system...

X-ray Emissions A Tell-tale Sign Of Supernova Birth
2012-12-08 06:44:04

April Flowers for redOrbit.com - Your Universe Online A new study led by the University of Leicester has revealed new evidence suggesting X-ray detectors in space could be the first to witness new supernovae that signal the death of massive stars. An excess of X-ray radiation has been observed in the first few minutes of the collapse of massive stars. This excess may be the signature of the supernovae shock wave as it first escapes from the star. Dr. Rhaana Starling of the University...


Latest Supernovae Reference Libraries

6_c21be0ecb1b565a9be109a383c38223f2
2004-10-19 04:45:43

White Dwarf -- A white dwarf is a a star supported by electron degeneracy. A star like our Sun will become a white dwarf when it has exhausted its nuclear fuel. Near the end of its nuclear burning stage, such a star goes through a red giant phase and then expels most of its outer material (creating a planetary nebula) until only the hot (T > 100,000 K) core remains, which then settles down to become a young white dwarf. A typical white dwarf is half as massive as the Sun, yet only...

6_19859ff34fd03d00777232e2520ce83f5
2004-10-19 04:45:42

Supernova Remnant -- A supernova remnant (SNR) is made up of the materials left behind by the gigantic explosion of a star in a supernova. There are two possible routes to this end: either a massive star may cease to generate fusion energy in its core, and collapse inward under the force of its own gravity, or a white dwarf star may accumulate material from a companion star until it reaches a critical mass and undergoes a similar collapse. In either case, the resulting supernova...

6_79c799b9f03f60809a9d0aecf38491202
2004-10-19 04:45:42

Supernova -- A supernova is a star that increases its brightness drastically within a matter of days, making it appear as if a "new" star was born (hence "nova"). The "super" prefix distinguishes it from a mere nova, which also involves a star increasing in brightness, though to a lesser extent and through a much different mechanism. Astronomers have classified supernovae in several classes, according to the lines of different elements that appear in their spectra. The first...

6_dac4e7d6b8fb5cf3a1458d796b90d7a92
2004-10-19 04:45:42

Stellar Evolution -- Stellar evolution is the process of formation, life, and death of stars. It is one of the major topics of cosmogony. Star Birth and Life A star starts out as an enormous cloud of gas and dust many light-years across. Star formation begins when the cloud begins to condense under its own gravity. The processes that initiate this contraction are not fully understood. The cloud fragments fuse into stellar mass clouds known as protostars. Protostars do not emit...

6_19859ff34fd03d00777232e2520ce83f4
2004-10-19 04:45:42

Nova -- A nova is an enormous nuclear explosion caused by the accretion of hydrogen onto the surface of a white dwarf star. When a white dwarf has a close companion star, the companion will often begin to have its outer atmosphere drawn away from it by the white dwarf's gravity as the companion star ages and expands into a red giant. The gases so captured consist primarily of hydrogen and helium, the two principle constituents of matter in the universe. The gases are compacted on the...

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