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When Galaxies Switch Off: Hubble's COSMOS Survey Solves 'Quenched' Galaxy Mystery
Some galaxies hit a point in
their lives when their star
formation is snuffed out,
and they become "quenched".
Quenched galaxies in the
... > full story
Under Leaden Skies: Where Heavy Metal Clouds the Stars
Astronomers have discovered
two unusual stars with
extremely high
concentrations of lead in
their atmospheres. ... > full story
Spitzer Discovers Young Stars With a 'Hula Hoop'
Astronomers using NASA's
Spitzer Space Telescope have
spotted a young stellar
system that "blinks" every
93 days. Called YLW 16A, the
system likely consists of
... > full story
NASA's Chandra Sees Eclipsing Planet in X-Rays for First Time
For the first time since
exoplanets, or planets
around stars other than the
sun, were discovered almost
20 years ago, X-ray
observations have detected
... > full story
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Pulsating Star Sheds Light on Exoplanet
July 29, 2013 — Astronomers have devised a way to measure the internal properties of stars —- a method that offers more accurate assessments of their orbiting ... > full story -
Hubble Eyes a Mysterious Old Spiral
July 26, 2013 — A striking cosmic whirl is the center of galaxy NGC 524, as seen with the NASA/ESA Hubble Space Telescope. This galaxy is located in the constellation of Pisces, some 90 million light-years from ... > full story -
Largest Magnetic Fields in the Universe
July 26, 2013 — Numerical simulations show for the first time the occurrence of an instability in the interior of neutron stars that can lead to gigantic magnetic fields, possibly triggering one of the most dramatic ... > full story -
Scientists Discover Surprising Importance of 'I Love Q' for Understanding Neutron Stars
July 25, 2013 — Astrophysicists have discovered why scientists can learn a tremendous amount about neutron stars and quark stars without knowing the details of their internal ... > full story -
Image of Sun-Approaching Comet ISON
July 25, 2013 — In this Hubble composite image taken in April 2013, the sun-approaching Comet ISON floats against a seemingly infinite backdrop of numerous galaxies and a handful of foreground ... > full story -
Starburst to Star Bust: Light Shed on Mystery of Missing Massive Galaxies
July 24, 2013 — The cosmic fireworks that characterize a starburst galaxy can abruptly fizzle out after only a relatively brief period of star formation, and astronomers want to know ... > full story -
Solar System's Youth Gives Clues to Planet Search
July 24, 2013 — Comets and meteorites contain clues to our solar system's earliest days. But some of the findings are puzzle pieces that don't seem to fit well together. A new set of theoretical models shows how an ... > full story -
Why Are Sea Stars Dying from New Jersey to Maine? Divers Asked to Report Large Groupings of Starfish
July 23, 2013 — Marine biologists are working to identify the cause of a disease that is killing sea stars (starfish) from New Jersey to ... > full story -
A Warmer Planetary Haven Around Cool Stars, as Ice Warms Rather Than Cools
July 19, 2013 — In a bit of cosmic irony, planets orbiting cooler stars may be more likely to remain ice-free than planets around hotter stars. This is due to the interaction of a star’s light with ice and ... > full story -
Snow in an Infant Solar System: A Frosty Landmark for Planet and Comet Formation
July 18, 2013 — A snow line has been imaged in a far-off infant solar system for the very first time. The snow line, located in the disc around the Sun-like star TW Hydrae, promises to tell us more about the ... > full story
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