Latest Supernova Stories

Astronomers Discover White Dwarf Supernovae
2013-02-27 20:00:36

Lee Rannals for redOrbit.com — Your Universe Online White dwarf supernovae that occurred millions of years ago have popped up in the Virgo Cluster galaxy and part of the sky labelled as "anonymous." Southern Methodist University (SMU) researchers say they've confirmed two bright stars that showed up in our skies in February and November are supernovae. Supernovae are the result of stars that have reached the end of their life, resulting in a large explosion that can consume...

Cassini Catches Solar Wind, Helps NASA Study Particle Acceleration
2013-02-20 14:23:12

Michael Harper for redOrbit.com — Your Universe Online As it floats around the planet Saturn, the Cassini spacecraft recently got a front row seat to what NASA astronomers are calling an “unusual strong blast of solar wind.” Shortly after this “wind” blew by, Cassini began detecting particles which had been accelerated to ultra-high energies. Particles which are accelerated this much are usually found surrounding far away supernovas. This is good news for...

Supernova Gives Scientists Clues Into Origins Of Cosmic Rays
2013-02-14 13:19:29

[ Watch the Video: Fermi Proves Supernova Remnants Produce Cosmic Rays ] Lee Rannals for redOrbit.com - Your Universe Online A thousand-year-old supernova has given the European Space Observatory's Very Large Telescope (VLT) ample opportunity to gain some clues about the origins of cosmic rays. The new observations, reported in the journal Science today, suggest the presence of fast-moving particles in the supernova remnant. Over a thousand years ago, in 1006 AD, a new star was...

Astronomers Discover Youngest Black Hole In Milky Way
2013-02-13 12:11:40

Lee Rannals for redOrbit.com — Your Universe Online A rare explosion from a rotating star may have created the most recent black hole formed in the Milky Way galaxy. Astronomers using NASA's Chandra X-ray Observatory claim that matter was ejected at high speeds along the poles of a rotating star, creating a supernova remnant, W49B, which may contain a young black hole. "W49B is the first of its kind to be discovered in the galaxy," said Laura Lopez, who led the study at the...

Supernova Forecasting May Get A Little Easier
2013-02-06 12:25:38

Lee Rannals for redOrbit.com - Your Universe Online New observations have led to a better understanding of supernovae, which could one day lead to even better forecasts for the cosmic events. Type II supernovae form when a massive star collapses, sending off a giant explosion from the dying star. Having a better way to predict these events would allow astronomers to study them in their earliest stages. Astronomers wrote in the journal Nature this week that they have observed an...

Solar Winds Examined By XMM-Newton
2013-02-05 18:03:01

Lee Rannals for redOrbit.com — Your Universe Online While solar wind is a common occurrence in our Solar System, a study of a new, more fierce wind has been completed using the European Space Agency's XMM-Newton space observatory. These massive stellar winds derive from rare, giant stars which burn their nuclear fuel more rapidly than stars like the Sun, and that live for millions of years before exploding into a supernova. Massive stars lose a significant fraction of their...

Study Reveals Secrets Of Binary Stars Through Red Explosions
2013-01-25 11:12:34

April Flowers for redOrbit.com - Your Universe Online Astrophysicists have debated the outcome of two binary stars — stars that orbit each other — coming together in a "common envelope" for a long time. A new study from the University of Alberta has finally provided some answers. Theoretical astrophysicist Natalia Ivanova has revealed the workings of a celestial event that produces an explosion so powerful its luminosity approaches that of a supernova. “When this...

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...

Latest Supernova Reference Libraries

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...

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...

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...

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...

2004-10-19 04:45:41

Magnetar -- A magnetar is a neutron star with a strong magnetic field. The theory around these objects was formulated by Robert Duncan and Christopher Thompson. When in a supernova a star collapses to a neutron star, its magnetic field increases dramatically in strength. Duncan and Thompson calculated that the magnetic field of a neutron star, normally an already enormous 1012 tesla could under certain circumstances grow even larger, to about 1015 tesla. Such a highly magnetic neutron...

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Word of the Day
  • A cloth or covering, more or less ornamented, laid over the saddle or furniture of a horse, especially of a sumpter-horse or horse of state.
  • Clothing, especially sumptuous clothing; equipment; outfit.
  • To cover with a caparison, as a horse.
  • To dress sumptuously; adorn with rich dress.
This word ultimately comes from the Medieval Latin 'cappa,' cloak.