Posts Tagged ‘supernova’
Supernova fireworks shed light on cosmos
CALTECH (US) — The brightest and closest stellar explosion seen from Earth in 25 years offers the most detailed picture yet of how this kind of explosion happens. Continue…
Friday, December 16, 2011 11:04 - 2 Comments
Science & Technology - Jun 10, 2011 10:15 - 0 Comments
Oddball supernova bright and baffling
CALTECH (US) — Bright blue supernovae that are among the most luminous in the cosmos and are unlike any seen before, may help explain star formation, distant galaxies, and what the early universe might have been like. (more…)
Science & Technology - Apr 4, 2011 15:13 - 1 Comment
Super-rare supernova outshines the rest
U. TEXAS-AUSTIN (US) — At its peak, a newly found supernova emitted enough energy in one second to satisfy the power needs of the U.S. for one million times longer than the universe has existed. (more…)
Science & Technology - Mar 25, 2011 10:27 - 1 Comment
How a supernova earns its stripes
RUTGERS (US) — A cosmic event can speed particles to energies a hundred times higher than those on Earth. How it’s possible may be explained by a pattern of X-ray stripes in the remains of an exploded star. (more…)
Science & Technology - Sep 17, 2010 10:47 - 0 Comments
Simulations show supernova explode in 3-D
PRINCETON (US)— New simulations created with supercomputers reveal supernovae exploding in 3-D. (more…)
Science & Technology - Sep 9, 2010 16:46 - 0 Comments
Supernova shrapnel found in meteorite
U. CHICAGO (US)—Scientists have identified the microscopic shrapnel of a nearby star that exploded just before or during the birth of the solar system 4.5 billion years ago. (more…)
Science & Technology - Sep 3, 2010 14:19 - 3 Comments
Exploding supernova spews star guts
U. COLORADO (US)—Astronomers have been able to measure the velocity and composition of “star guts” being ejected into space following the explosion of a nearby supernova, thanks to a newly refurbished Hubble Space Telescope. (more…)
Science & Technology - Aug 9, 2010 10:08 - 0 Comments
Why tin is ‘magic’ for physicists
RUTGERS (US)—In the journal Nature, physicists recently reported studies on tin that add knowledge to a concept known as magic numbers—while perhaps helping scientists to explain how heavy elements are made in exploding stars. (more…)
Science & Technology - Feb 3, 2010 12:55 - 0 Comments
Simulated galaxies resemble real ones
WASHINGTON (US)—Using millions of hours on supercomputers, researchers have run simulations of galaxy formation and produced dwarf galaxies very much like those observed today by satellites and large telescopes around the world. (more…)
Society & Culture - Oct 30, 2009 5:47 - 2 Comments
Race ends in dead heat; Einstein wins
STANFORD (US)—Racing across the universe for the last 7.3 billion years, two gamma-ray photons arrived at NASA’s orbiting Fermi Gamma-ray Space Telescope within nine-tenths of a second of one another. The dead-heat finish may stoke the fires of debate among physicists over Einstein’s special theory of relativity because one of the photons possessed a million times more energy than the other. (more…)
Science & Technology - May 26, 2009 16:02 - 0 Comments
Zeroing in on supernova distance
Remnant of a supernova. (Credit: NASA)
