Quantcast

Latest Supernovae Stories

Supernova Remnant Reveals Its Aftershock
2012-11-14 12:57:25

A new image released by the European Space Agency shows the aftershock of a stellar explosion coming from supernova remnant W44.

Rare Supernovae Are The Most Luminous Ever Observed
2012-11-02 04:39:13

An international team of astronomers has discovered the most-distant, super-luminous supernovae observed to date. The violent stellar explosions which caused these supernovae would have occurred soon after the Big Bang when the universe was much younger.

Supernova Remnant Powered By Radioactive Decay Of Titanium
2012-10-18 04:20:39

Radioactive titanium associated with supernova remnant 1987A has been directly detected by ESA's Integral space observatory. The glowing remnant around the exploded star has likely been powered by the decaying from this titanium for the last 20 years.

Supernova Was Caused By A Yellow Supergiant
2012-09-29 06:47:07

A team of Japanese researchers has discovered evidence that a yellow supergiant was, in fact, the progenitor for a recently discovered supernova -- a discovery which they say raises serious questions regarding our understanding of the evolution of massive stars.

Supernova Cause Revealed A Millennium Later
2012-09-28 10:32:37

Just over 1,000 years ago, one of the brightest stellar events ever recorded in history was widely observed by a number of civilizations across the globe.

The Pencil Nebula, a strangely shaped leftover from a vast explo
2012-09-12 21:48:15

It seems a little early to already start decorating for Halloween, but the European Space Observatory has decided that it's never too early for a nebula shaped like a witch's broom.

New Clues Into Kepler Supernova Explosion Reveal Power, Distance
2012-09-12 13:12:54

Johannes Kepler and other scientists witnessed a bright new star in 1604 that outshone even Jupiter before dimming over several weeks.

Cosmic Superbubble Shows Its Bright Side
2012-08-31 11:01:49

NASA has released a hauntingly beautiful composite image showing a superbubble in the Large Magellanic Cloud (LMC). The LMC is a small satellite galaxy of the Milky Way located about 160,000 light years from Earth.

Astronomers Observe Type 1a Supernova Progenitor System
2012-08-24 05:07:44

For the first time, astronomers have observed a Type 1a supernova progenitor system, according to a report in the journal Science.


Latest Supernovae Reference Libraries

White Dwarf
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...

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 element...

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...

More Articles (8 articles) »
Word of the Day
shavie
  • A trick or prank.
The word 'shavie' is related to 'shave'.