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Latest Wolf-Rayet star Stories

Very First Stars Were Not Monstrous
2011-11-11 04:26:06

The very first stars in our universe were not the behemoths scientists had once thought, according to new simulations performed at NASA's Jet Propulsion Laboratory, Pasadena, Calif. Astronomers "grew" stars in their computers, mimicking the conditions of our primordial universe. The simulations took weeks. When the scientists' concoctions were finally done, they were shocked by the results -- the full-grown stars were much smaller than expected. Until now, it was widely believed that...

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2011-06-06 13:39:26

Exploding stars are the "factories" that produce all the heavy elements found, among other places, in our bodies. In this sense, we are all stardust. These exploding stars "“ supernovae "“ are highly energetic events that can occasionally light up the night sky. Such an explosion generally involves disruption in the balance between gravity "“ which pulls the star's material inward "“ and the thermonuclear reaction at the star's core "“ which heats it and pushes...

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2011-05-26 14:33:32

Five billion years from now, our Milky Way galaxy will collide with the Andromeda galaxy. This will mark a moment of both destruction and creation. The galaxies will lose their separate identities as they merge into one. At the same time, cosmic clouds of gas and dust will smash together, triggering the birth of new stars. To understand our past and imagine our future, we must understand what happens when galaxies collide. But since galaxy collisions take place over millions to billions of...

2011-05-25 09:26:46

Researchers at the University of Warwick have found a unique feuding double white dwarf star system where each star appears to have been stripped down to just its helium. We know of just over 50 close double white dwarfs but this was only the second ever eclipsing close white dwarf pair to be found. The University of Warwick astronomers Steven Parsons and Professor Tom Marsh were able to use the fact that the stars eclipse each other when seen from Earth to make particularly detailed...

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2010-12-22 06:20:00

New observations by University of Michigan astronomers add weight to the theory that the most massive stars in the universe could form essentially anywhere, including in near isolation; they don't need a large stellar cluster nursery. This is the most detailed observational study to date of massive stars that appear (from the ground) to be alone. The scientists used the Hubble Space Telescope to zoom in on eight of these giants, which range from 20 to 150 times as massive as the Sun. The...

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2010-10-12 12:00:00

A giant star in a faraway galaxy recently ended its life with a dust-shrouded whimper instead of the more typical bang. Ohio State University researchers suspect that this odd event -- the first one of its kind ever viewed by astronomers "“ was more common early in the universe. It also hints at what we would see if the brightest star system in our galaxy became a supernova. In a paper published online in the Astrophysical Journal, Christopher Kochanek, a professor of astronomy at Ohio...

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2010-07-28 08:40:00

A spectacular new image from ESO's Wide Field Imager at the La Silla Observatory in Chile shows the brilliant and unusual star WR 22 and its colorful surroundings. WR 22 is a very hot and bright star that is shedding its atmosphere into space at a rate many millions of times faster than the Sun. It lies in the outer part of the dramatic Carina Nebula from which it formed. Very massive stars live fast and die young. Some of these stellar beacons have such intense radiation passing through...

2010-07-22 09:49:00

WASHINGTON, July 22 /PRNewswire-USNewswire/ -- NASA's Hubble Space Telescope has detected a hypervelocity star - a rare phenomenon moving three times faster than our sun. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO ) (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO ) The star may have been created in a cosmic misstep. A hundred million years ago, a triple-star system was traveling through the bustling center of our Milky Way galaxy when it wandered too close...

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2010-07-07 13:45:00

A wave of massive star formation appears poised to begin within a mysterious, dark cloud in the Milky Way.  NASA's Spitzer Space Telescope  has revealed a secluded birthplace for stars within a wispy, dark cloud named M17 SWex. The dark cloud is part of the larger, parent nebula known as M17, a vast region of our galaxy with a bright, central star cluster. "We believe we've managed to observe this dark cloud in a very early phase of star formation before its most massive stars have...

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2010-06-22 09:05:00

A spectacular new NASA/ESA Hubble Space Telescope image "” one of the largest ever released of a star-forming region "” highlights N11, part of a complex network of gas clouds and star clusters within our neighboring galaxy, the Large Magellanic Cloud. This region of energetic star formation is one of the most active in the nearby Universe. The Large Magellanic Cloud contains many bright bubbles of glowing gas. One of the largest and most spectacular has the name LHA 120-N 11,...


Latest Wolf-Rayet star Reference Libraries

6_d67b2db586c7facec8388b5df78e57912
2004-10-19 04:45:42

Star -- A star is a self-gravitating sphere of plasma in hydrostatic equilibrium that generates energy in its interior through the process of nuclear fusion. Energy from this process radiates into space as electromagnetic radiation and neutrinos. Star formation and evolution As learned by star formation astronomers, stars are born in molecular clouds, regions of higher density of matter, and form by gravitational instability inside those clouds. High mass stars illuminate powerfully...

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Word of the Day
Cthulhu
  • A gigantic fictional humanoid alien god being described with a head resembling an octopus and dragon wings and claws, around whom an insane cult developed.
  • Pertaining to the mythos of Cthulhu and additional otherworldly beings created by H. P. Lovecraft or inspired by his writings and imitators.
This word was invented in 1926 by H.P. Lovecraft for his short story, 'The Call of Cthulhu.' 'Cthulhu' may be based on the word 'chthonic,' which in Greek mythology refers to the underworld.
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