Windows to the past, stars can unveil the history of our universe, currently estimated to be 14 billion years old. The farther away the star, the older it is—and the oldest stars are the most difficult to detect. Current ...
Astronomy
Sep 5, 2012
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(Phys.org)—Nature hath no fury like a dying star—and astronomers couldn't be happier...
Astronomy
Aug 30, 2012
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Sparse halos of neutrinos within the hearts of exploding stars exert a previously unrecognized influence on the physics of the explosion and may alter which elements can be forged by these violent events.
General Physics
Aug 21, 2012
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(Phys.org) -- 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 ...
Astronomy
Aug 3, 2012
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Starting from the behavior of small flames in the laboratory, a team of researchers has gained new insights into the titanic forces that drive Type Ia supernova explosions. These stellar explosions are important tools for ...
General Physics
Nov 22, 2011
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Type Ia supernovae are violent stellar explosions whose brightness is used to determine distances in the universe. Observing these objects to billions of light years away has led to the discovery that the universe is expanding ...
Astronomy
Aug 11, 2011
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A researcher at the Harvard-Smithsonian Center for Astrophysics believes that a new kind of supernova is at work in recent observations of bright but short-lasting stellar explosions that don’t appear to fit known categories.
Astronomy
Jun 3, 2011
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(PhysOrg.com) -- Astronomers using NASA's Galaxy Evolution Explorer may be closer to knowing why some of the most massive stellar explosions ever observed occur in the tiniest of galaxies.
Astronomy
Apr 22, 2011
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(PhysOrg.com) -- The wispy arms of the Tarantula Nebula were originally thought to resemble spindly spider legs, giving the nebula its unusual name. The part of the nebula visible in this image from Hubble's Advanced Camera ...
Astronomy
Mar 15, 2011
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Elements heavier than iron come into being only in powerful stellar explosions, supernovae. During nuclear reactions all kinds of short-lived atomic nuclei are formed, including more stable combinations – the so-called ...
General Physics
Feb 2, 2011
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