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Astronomers Find Rare Beast by New Means
Astronomers have found an
example of the rare type of
supernova thought to produce
Gamma Ray Bursts, but
through radio, not
gamma-ray, observations. The
breakthrough, they say, will
... > full story
Star Shoots out Material at Close to the Speed of Light
Astronomers studying a
stellar explosion (known as
SN 2007gr) have found
long-sought evidence that
certain types of supernovae
produce 'relativistic' jets
... > full story
Cosmology: Weak Gravitational Lensing Improves Measurements of Distant Galaxies
A cosmologist has extended
the relationship between the
x-ray luminosity and the
mass of galaxy clusters as
measured by gravitational
... > full story
How Galaxies Form: New Research Resolves Conflict in Theory
The cold dark matter theory
has been used for more than
20 years to explain how the
smooth universe from the big
bang evolved into the
galaxy-rich cosmos we see
... > full story
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'Fossil' Fireballs from Supernovae Discovered by Suzaku Observatory
January 11, 2010 — Studies of two supernova remnants using the Japan-US Suzaku observatory have revealed never-before-seen embers of the high-temperature fireballs that immediately followed the explosions. Even after ... > full story -
Milky Way's Magnetic Attraction Ten Times Stronger Than Rest of Galaxy
January 7, 2010 — The magnetic field in the center of the Milky Way is at least 10 times stronger than the rest of the galaxy, according to new ... > full story -
Astronomers Get New Tools for Gravitational-Wave Detection
January 7, 2010 — A breakthrough in discovering new millisecond pulsars is providing astronomers a greatly improved capability to use those natural cosmic tools to make the first direct detections of gravitational ... > full story -
Nature's Most Precise Clocks May Make 'Galactic GPS' Possible: Pulsars Help in Search for Gravitational Waves
January 6, 2010 — Radio astronomers have uncovered 17 millisecond pulsars in our galaxy by studying unknown high-energy sources detected by NASA's Fermi Gamma-ray Space Telescope. The astronomers made the discovery in ... > full story -
Massive Black Hole Implicated in Stellar Destruction
January 4, 2010 — New results from NASA's Chandra X-ray Observatory and the Magellan telescopes suggest that a dense stellar remnant has been ripped apart by a black hole a thousand times as massive as the Sun. If ... > full story -
Herschel Space Telescope Uncovers Sources of Cosmic Infrared Background
December 24, 2009 — A weak cosmic infrared radiation field that reaches Earth from all directions contains not yet deciphered messages about the evolution of galaxies. Using first observations with the PACS Instrument ... > full story -
Scientists Shed Light on a Mysterious Particle, the Neutrino
December 22, 2009 — Physicists have begun looking deep into the Earth to study some of nature's weirdest particles -- ... > full story -
Supernova Remnants Reveal How the Star Exploded
December 21, 2009 — A new study of images from NASA's Chandra X-ray Observatory on supernova remnants -- the debris from exploded stars -- shows that the symmetry of the remnants, or lack thereof, reveals how the star ... > full story -
Latest Results from Lunar Mission Unveiled by NASA
December 16, 2009 — NASA's current mission in orbit around the moon, the Lunar Reconnaissance Orbiter, or LRO, has been providing crucial insights about our nearest celestial neighbor since its launch in June. At a ... > full story -
Theorists Propose a New Way to Shine -- And a New Kind of Star: 'Electroweak'
December 15, 2009 — Physicists propose there may be a new stage for some dying stars. Dubbed electroweak stars, they are fueled by the conversion of quarks to leptons, which prevents or staves off collapse into a black ... > full story
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