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First Ultraluminous Source in Andromeda Galaxy Unmasked as 'Normal' Stellar Mass Black Hole
February 23, 2012 — Detailed observations show that the first ultraluminous X-ray source detected in our neighboring Andromeda galaxy is due to a stellar mass black hole swallowing material at very high rates. The ... > full storyMore: -
Black Hole Came from a Shredded Galaxy
February 15, 2012 — Astronomers have found a cluster of young, blue stars encircling the first intermediate-mass black hole ever discovered. The presence of the star cluster suggests that the black hole was once at the ... > full storyMore: -
Globular Clusters: Survivors of a 13-Billion-Year-Old Massacre
February 14, 2012 — Our Milky Way galaxy is surrounded by some 200 compact groups of stars, containing up to a million stars each. At 13 billion years of age, these globular clusters are almost as old as the universe ... > full story -
Planck All-Sky Images Show Cold Gas and Strange Haze in Milky Way Galaxy
February 13, 2012 — New images from the Planck mission show previously undiscovered islands of star formation and a mysterious haze of microwave emissions in our Milky Way galaxy. The views give scientists new treasures ... > full story -
NASA's Galaxy Evolution Explorer in Standby Mode
February 9, 2012 — NASA's Galaxy Evolution Explorer, or Galex, was placed in standby mode Feb. 7, 2012 as engineers prepare to end mission operations, nearly nine years after the telescope's launch. The spacecraft is ... > full story -
New Image Captures 'Stealth Merger' of Dwarf Galaxies
February 8, 2012 — New images of a nearby dwarf galaxy have revealed a dense stream of stars in its outer regions, the remains of an even smaller companion galaxy in the process of merging with its host. The host ... > full story -
Classic Portrait of a Barred Spiral Galaxy
February 3, 2012 — The NASA/ESA Hubble Space Telescope has taken a picture of the barred spiral galaxy NGC 1073, which is found in the constellation of Cetus (The Sea Monster). Our own galaxy, the Milky Way, is a ... > full story -
Hubble Zooms in on a Magnified Galaxy
February 2, 2012 — Astronomers aimed Hubble at one of the most striking examples of gravitational lensing, a nearly 90-degree arc of light in the galaxy cluster RCS2 032727-132623. Hubble's view of the distant ... > full story -
Do Black Holes Help Stars Form?
February 2, 2012 — The center of just about every galaxy is thought to host a black hole, some with masses of thousands of millions of Suns and consequently strong gravitational pulls that disrupt material around them. ... > full story -
Scientists See 'Sloshing' Galaxy Cluster
January 30, 2012 — Scientists have recently discovered that vast clouds of hot gas are "sloshing" in Abell 2052, a galaxy cluster located about 480 million light years from ... > full story -
The Wild Early Lives of Today's Most Massive Galaxies: Dramatic Star Formation Cut Short by Black Holes
January 25, 2012 — Astronomers have found the strongest link so far between the most powerful bursts of star formation in the early Universe, and the most massive galaxies found today. The galaxies, flowering with ... > full story -
Most Distant Dwarf Galaxy Detected
January 18, 2012 — Scientists have long struggled to detect the dim dwarf galaxies that orbit our own galaxy. So it came as a surprise on Jan. 18 when a team of astronomers using Keck II telescope's adaptive optics has ... > full story
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