News tagged with white dwarfs

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A cosmic holiday ornament, Hubble-style

(—'Tis the season for holiday decorating and tree-trimming. Not to be left out, astronomers using NASA's Hubble Space Telescope have photographed a festive-looking nearby planetary nebula called NGC 5189. The intricate ...

dateDec 18, 2012 in Astronomy
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Spectacular supernova's mysteries revealed

( —New research by a team of UK and European-based astronomers is helping to solve the mystery of what caused a spectacular supernova in a galaxy 11 million light years away, seen earlier this year.

dateAug 22, 2014 in Astronomy
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Can life emerge on planets around cooling stars?

(—Astronomers find planets in strange places and wonder if they might support life. One such place would be in orbit around a white or brown dwarf. While neither is a star like the sun, both glow and so could be ...

dateNov 20, 2012 in Astronomy
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Probing the origins of extreme neutron stars

( -- Neutron stars are the unimaginably dense corpses of what were once much more massive stars that died while being ripped apart in a supernova explosion. Their average density is typically more than one billion ...

dateMay 31, 2011 in Astronomy
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Hubble catches a stellar exodus in action

Using NASA's Hubble Space Telescope, astronomers have captured for the first time snapshots of fledgling white dwarf stars beginning their slow-paced, 40-million-year migration from the crowded center of an ancient star cluster ...

dateMay 14, 2015 in Astronomy
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Rapid supernova could be new class of exploding star

( -- An unusual supernova rediscovered in seven-year-old data may be the first example of a new type of exploding star, possibly from a binary star system where helium flows from one white dwarf onto another and ...

dateNov 05, 2009 in Astronomy
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