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Early universe supports dark matter theory Stanford, Calif. (UPI) Nov 4, 2009 
U.S. and Welsh researchers say they've obtained a detailed picture of the early universe using a telescope in the Antarctic. The researchers led by Professors Walter Gear of Cardiff University and Sarah Church of Stanford University said their measurements of the cosmic microwave background provide further support for the standard cosmological model of the universe. They said the ... read morePhysicist Identifies Mysterious Core Left By Exploding Star 
Edmonton, Canada (SPX) Nov 05, 2009University of Alberta physics professor Craig Heinke has solved a mystery that lies 11,000 light years beyond Earth. A supernova (or exploding star), 20 times heavier than our sun blasted apart, leaving behind a small core that has puzzled astronomers since its discovery in 1999. Heinke and a colleague have identified the 20 kilometre-wide remnant of the supernova as a neutron star. It's ... more
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Carbon Atmosphere Discovered On Neutron Star
Boston MA (SPX) Nov 05, 2009Evidence 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 mystery surrounding this object. "The compact star at the center of this famous supernova remnant has been an enigma since its discovery," said Wynn Ho of the University of Southampton and lead author of ... more Precise Picture Of Early Universe Supports 'Dark Matter' Theory 
Cardiff, UK (SPX) Nov 03, 2009A detailed picture of the seeds of structures in the universe has been unveiled by an international team co-led by a Cardiff University scientist. The team has obtained extremely precise data about the early universe, using a telescope near the South Pole in the Antarctic. Their measurements of the cosmic microwave background - a faintly glowing relic of the hot, dense, young universe ... more Fermi Detects Gamma-Ray From "Star Factories" In Other Galaxies 
Menlo Park CA (SPX) Nov 03, 2009Nearby galaxies undergoing a furious pace of star formation also emit lots of gamma rays, say astronomers using NASA's Fermi Gamma-ray Space Telescope. Two so-called "starburst" galaxies, plus a satellite of our own Milky Way galaxy, represent a new category of gamma-ray-emitting objects detected both by Fermi and ground-based observatories. "Starburst galaxies have not been accessible in ... more VERITAS Telescopes Help Solve Origin Of Cosmic Rays 
Boston MA (SPX) Nov 03, 2009Nearly 100 years ago, scientists detected the first signs of cosmic rays - subatomic particles (mostly protons) that zip through space at nearly the speed of light. The most energetic cosmic rays hit with the punch of a 98-mph fastball, even though they are smaller than an atom. Astronomers questioned what natural force could accelerate particles to such a speed. New evidence from the ... more |
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World's Fastest Supercomputer Models Origins Of The Unseen Universe
Los Alamos NM (SPX) Oct 28, 2009Understanding dark energy is the number one issue in explaining the universe, according to Salman Habib, of the Laboratory's Nuclear and Particle Physics, Astrophysics and Cosmology group. "Because the universe is expanding and at the same time accelerating, either there is a huge gap in our understanding of physics, or there is a strange new form of matter that dominates the universe ... more Astronomy Question Of The Week: What Happens When Stars Play Hide-And-Seek 
Bonn, Germany (SPX) Oct 27, 2009Astronomers know the answer and would therefore have been able to answer the One-Million-Euro question in the 250th episode of Gunter Jauch's hit TV show 'Wer wird Millionär?' (Who wants to be a millionaire?): What is an eclipsing binary? An eclipsing binary is a special binary star system. A binary star is a system comprising two stars which lie close to one another and which move around ... more Galaxy Cluster Smashes Distance Record 
Boston MA (SPX) Oct 26, 2009The most distant galaxy cluster yet has been discovered by combining data from NASA's Chandra X-ray Observatory and optical and infrared telescopes. The cluster is located about 10.2 billion light years away, and is observed as it was when the Universe was only about a quarter of its present age. The galaxy cluster, known as JKCS041, beats the previous record holder by about a billion ... more Astronomy Question Of The Week: What Does The 'Family Tree' Of Stars Look Like 
Bonn, Germany (SPX) Oct 21, 2009Not all of the stars in the Universe are the same - differences in brightness and colour can be recognised even with the naked eye. In the 19th century, star spectroscopy developed into an important method of analysis in astronomy: it divides light and other electromagnetic radiation from stars according to its wavelength. For example, visible light is split into the colours of the rainbow ... more |
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