News tagged with supernova
Related topics: stars , massive stars , galaxies , white dwarfs , neutron stars
A second look at supernovae light: Universe's expansion may be understood without dark energy
(PhysOrg.com) -- The 2011 Nobel Prize in physics, awarded just a few weeks ago, went to research on the light from Type 1a supernovae, which shows that the universe is expanding at an accelerating rate. The ...
Oct 24, 2011 |
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Dark Energy From the Ground Up: Make Way for BigBOSS
(PhysOrg.com) -- Several ways have been proposed to examine dark energy, in hopes of finding out just what it is. One of them, "supernovae" for short, certainly works: it's how dark energy was discovered in ...
Aug 07, 2009 |
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Massive white dwarf in our galaxy may go supernova
(PhysOrg.com) -- A massive white dwarf star in our galaxy may become a supernova several million years from now, and could damage the Earth and possibly destroy life on Earth.
Jan 07, 2010 |
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Runaway star plows through space
(PhysOrg.com) -- A massive star flung away from its former companion is plowing through space dust. The result is a brilliant bow shock, seen here as a yellow arc in a new image from NASA's Wide-field Infrared ...
Jan 25, 2011 |
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Closest Type Ia supernova in decades solves a cosmic mystery
Type Ia supernovae (SN Ia's) are the extraordinarily bright and remarkably similar "standard candles" astronomers use to measure cosmic growth, a technique that in 1998 led to the discovery of dark energy ...
Dec 14, 2011 |
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New theory suggests some black holes might predate the Big Bang
(PhysOrg.com) -- Cosmologists Alan Coley from Canada's Dalhousie University and Bernard Carr from Queen Mary University in London, have published a paper on arXiv, where they suggest that some so-called primor ...
May 10, 2011 |
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Backyard astronomer in Ireland finds supernova
(PhysOrg.com) -- An amateur astronomer working from his backyard shed in Ireland was the first in the world to spot a supernova explosion last month. The discovery is the biggest ever in amateur astronomy ...
Oct 08, 2010 |
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A Superbright Supernova That’s the First of Its Kind
(PhysOrg.com) -- An extraordinarily bright, extraordinarily long-lasting supernova named SN 2007bi, snagged in a search by a robotic telescope, turns out to be the first example of the kind of stars that first ...
Dec 02, 2009 |
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Aboriginal astronomers observed and recorded a 'supernova-impostor' event: research
(PhysOrg.com) -- New research by Macquarie University astronomers Duane Hamacher and David Frew supports the assertion that Aboriginal Australians were active observers of the night sky and incorporated significant ...
Nov 09, 2010 |
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Geoscientist offers new evidence that meteorite did not wipe out dinosaurs
A Princeton University geoscientist who has stirred controversy with her studies challenging a popular theory that an asteroid wiped out the dinosaurs has compiled powerful new evidence asserting her position.
Space & Earth / Earth Sciences
May 04, 2009 |
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Our galaxy might hold thousands of ticking 'time bombs'
(PhysOrg.com) -- In the Hollywood blockbuster "Speed," a bomb on a bus is rigged to blow up if the bus slows down below 50 miles per hour. The premise - slow down and you explode - makes for a great action ...
Sep 06, 2011 |
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Why Won't the Supernova Explode?
A massive old star is about to die a spectacular death. As its nuclear fuel runs out, it begins to collapse under its own tremendous weight. The crushing pressure inside the star skyrockets, triggering new ...
Space & Earth / Space Exploration
Jan 07, 2010 |
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Super Supernova: White Dwarf Star System Exceeds Mass Limit
(PhysOrg.com) -- An international team led by Yale University has, for the first time, measured the mass of a type of supernova thought to belong to a unique subclass and confirmed that it surpasses what was ...
Mar 15, 2010 |
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'Instant cosmic classic' supernova discovered
(PhysOrg.com) -- A supernova discovered yesterday is closer to Earth—approximately 21 million light-years away—than any other of its kind in a generation. Astronomers believe they caught the supernova ...
Aug 25, 2011 |
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Carbon Atmosphere Discovered on Neutron Star
(PhysOrg.com) -- Evidence for a thin veil of carbon has been found on the neutron star in the Cassiopeia A supernova remnant. This discovery, made with NASA's Chandra X-ray Observatory, resolves a ten-year ...
Nov 04, 2009 |
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