Posts Tagged ‘supernova’
At solar system’s birth, no exploding star
U. CHICAGO (US) —New research challenges the notion that the force of an exploding star prompted the formation of the solar system. Continue…
Monday, December 17, 2012 13:00 - 2 Comments
Science & Technology - Nov 20, 2012 17:33 - 0 Comments
Dim supernovae are likely stars that didn’t detonate
U. CHICAGO (US) — Supercomputer simulations have revealed that a type of oddly dim, exploding star is probably a class of duds—that could nonetheless help explain the mysterious nature of dark energy. (more…)
Top Stories - Nov 2, 2012 10:35 - 0 Comments
Exploded stars may be universe’s earliest
U. TORONTO (CAN) — Astronomers have observed the most-distant, super-luminous supernovae found to date. (more…)
Science & Technology - Aug 24, 2012 15:29 - 0 Comments
Supernova’s origin surprises astronomers
UC SANTA BARBARA (US) — There is more than one way to make a thermonuclear (Type Ia) supernova, new evidence suggests. (more…)
Science & Technology - Jul 18, 2012 11:18 - 0 Comments
Simulations reveal signature of exploding stars
CALTECH (US) — Researchers have found via computer simulation what they believe will be an unmistakable signature of a feature of a supernova. (more…)
Science & Technology - Mar 2, 2012 13:56 - 0 Comments
Supernova fireworks when white dwarfs merge
U. PITTSBURGH (US) — Once a century an explosion in the Milky Way is caused by the merger of double white dwarf supernovae, a finding that may help measure the distances of galaxies. (more…)
Top Stories - Dec 16, 2011 11:04 - 2 Comments
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. (more…)
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
YALE (US)—A new technique for accurately measuring the distances to supernovae may help scientists test predictions about the history of dark energy and its behavior in the early universe. (more…)
