News tagged with white dwarfs

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Pan-STARRS discovers two super supernovae

Supernovae are the brightest phenomenon in the current universe. As massive stars die as supernovae, they briefly outshine the rest of the stars in their galaxy and are visible, at least once the light gets there, from across ...

dateJul 22, 2011 in Astronomy
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The best way to measure dark energy just got better

( -- Dark energy is a mysterious force that pervades all space, acting as a "push" to accelerate the Universe's expansion. Despite being 70 percent of the Universe, dark energy was only discovered in 1998 by two ...

dateJan 13, 2011 in Astronomy
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One supernova type, two different sources

The exploding stars known as Type Ia supernovae serve an important role in measuring the universe, and were used to discover the existence of dark energy. They're bright enough to see across large distances, and similar enough ...

dateMay 07, 2012 in Astronomy
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Evolved stars locked in fatalistic dance

White dwarfs are the burned-out cores of stars like our Sun. Astronomers have discovered a pair of white dwarfs spiraling into one another at breakneck speeds. Today, these white dwarfs are so near they make a complete orbit ...

dateJul 13, 2011 in Astronomy
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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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