News tagged with white dwarf star

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World's observatories watching 'cool' star

The Whole Earth Telescope (WET), a worldwide network of observatories coordinated by the University of Delaware, is synchronizing its lenses to provide round-the-clock coverage of a cooling star. As the star dims in the twilight ...

dateMay 15, 2009 in Astronomy
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Einstein@Home detects unusual stellar pair

( -- Neutron stars are quite unique: the material they are made of is packed much more densely than conventional matter. They rotate extremely fast about their own axis, emitting radiation in the process, so they ...

dateApr 07, 2011 in Astronomy
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Dead Stars Tell Story of Planet Birth

( -- 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 with the ...

dateJan 05, 2009 in Astronomy
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The Helix Nebula in new colors

( -- ESO's VISTA telescope, at the Paranal Observatory in Chile, has captured a striking new image of the Helix Nebula. This picture, taken in infrared light, reveals strands of cold nebular gas that are invisible ...

dateJan 19, 2012 in Astronomy
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Supernova progenitor found?

( -- Type Ia supernovae are violent stellar explosions. Observations of their brightness are used to determine distances in the universe and have shown scientists that the universe is expanding at an accelerating ...

dateAug 03, 2012 in Astronomy
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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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