News tagged with dead stars
Dead Stars Tell Story of Planet Birth
Jan 05, 2009 |
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(PhysOrg.com) -- Astronomers have turned to an unexpected place to study the evolution of planets -- dead stars. Observations made with NASA's Spitzer Space Telescope reveal six dead "white dwarf" stars littered ...
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The origin of supernovae confirmed
Mar 19, 2009 |
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Where do supernovae come from? Astronomers have long believed they were exploding stars, but by analysing a series of images, researchers from the Dark Cosmology Centre at the Niels Bohr Institute, University of Copenhagen ...
Largest collection of anomalous white dwarfs observed by Hubble
Apr 23, 2009 |
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Twenty-four unusual stars, 18 of them newly discovered, have been observed in new Hubble telescope images. The stars are white dwarfs, a common type of dead star, but they are odd because they are made of ...
'Ghost of Mirach' Materializes in Space Telescope Image
Oct 31, 2008 |
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(PhysOrg.com) -- NASA's Galaxy Evolution Explorer has lifted the veil off a ghost known to haunt the local universe, providing new insight into the formation and evolution of galaxies.
Neutron stars can be more massive, while black holes are more rare
Jan 14, 2008 |
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Neutron stars and black holes aren’t all they’ve been thought to be. In fact, neutron stars can be considerably more massive than previously believed, and it is more difficult to form black holes, according to new research ...
Solar systems around dead Suns?
Apr 20, 2009 |
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(PhysOrg.com) -- Using NASA’s Spitzer Space Telescope, an international team of astronomers have found that at least 1 in 100 white dwarf stars show evidence of orbiting asteroids and rocky planets, suggesting ...
Scientist finds coastal dead zones may benefit some species
Biology /
Oct 14, 2008 |
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Coastal dead zones, an increasing concern to ecologists, the fishing industry and the public, may not be as devoid of life after all. A Brown scientist has found that dead zones do indeed support marine life, ...
New understanding of the origin of galaxies
Jan 21, 2009 |
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A new theory as to how galaxies were formed in the Universe billions of years ago has been formulated by Hebrew University of Jerusalem cosmologists. The theory takes issue with the prevailing view on how ...
Colossal black holes common in early universe
Oct 16, 2008 |
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Astronomers think that many - perhaps all - galaxies in the universe contain massive black holes at their centers. New observations with the Submillimeter Array now suggest that such colossal black holes were ...
Galactic X-ray emissions originate from stars
May 05, 2009 |
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(PhysOrg.com) -- A 25-year old astronomical mystery has been solved: Most of the diffuse X-ray emissions in the Milky Way do not originate from one single source but from so-called white dwarfs and from stars ...
Scientists find giant ring encircling exotic dead star
May 28, 2008 |
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One of the most powerful eruptions in the universe might have spun an infrared ring around a rare and exotic star known as a magnetar, a highly magnetized neutron star and the remnant of a brilliant supernova ...
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