News tagged with dead stars
11.5 billion years old: Stellar archaeology traces Milky Way's history
(Phys.org) -- Unfortunately, stars don't have birth certificates. So, astronomers have a tough time figuring out their ages. Knowing a star's age is critical for understanding how our Milky Way galaxy built ...
4 hours ago |
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The music of gravitational waves
A team of scientists and engineers at NASA's Jet Propulsion Laboratory has brought the world one step closer to "hearing" gravitational waves -- ripples in space and time predicted by Albert Einstein in the ...
Nov 24, 2010 |
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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, ...
May 07, 2012 |
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A star with spiral arms
For more than four hundred years, astronomers have used telescopes to study the great variety of stars in our galaxy. Millions of distant suns have been catalogued. There are dwarf stars, giant stars, dead ...
Nov 01, 2011 |
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Probing the origins of extreme neutron stars
(PhysOrg.com) -- 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 ...
May 31, 2011 |
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The rose-red glow of star formation
The vivid red cloud in this new image from ESO's Very Large Telescope is a region of glowing hydrogen surrounding the star cluster NGC 371. This stellar nursery lies in our neighboring galaxy, the Small Magellanic ...
Mar 30, 2011 |
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First detailed look at young dusty discs around ageing stars
(PhysOrg.com) -- Astronomers from the University of Manchester's Jodrell Bank Centre for Astrophysics and the Observatoire de la Cote d’Azur in France have used the Very Large Telescope (VLT) in Chile to discover ...
Apr 14, 2010 |
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Dead Stars Tell Story of Planet Birth
(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 ...
Jan 05, 2009 |
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