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Galaxy Cluster Hidden in Plain View
March 6, 2012 — A team of astronomers has discovered the most distant cluster of red galaxies ever observed using FourStar, a new and powerful near-infrared camera on the 6.5m Magellan Baade Telescope. The galaxy ... > full story -
Exploding Stars: Important Clue Uncovered for Origins of Type Ia Supernovae
March 2, 2012 — The origin of an important type of exploding stars -- Type Ia supernovae -- have now been discovered. Studying supernovae of this type helps researchers measure galaxy distances and can lead to ... > full story -
Dark Matter Core, Left Behind from Wreck Between Massive Clusters of Galaxies, Defies Explanation
March 2, 2012 — Astronomers using data from NASA's Hubble Telescope have observed what appears to be a clump of dark matter left behind from a wreck between massive clusters of galaxies. The result could challenge ... > full story -
Searching for the First Stars
February 28, 2012 — How did the first stars and galaxies bring the young universe out of its dark ages and into the light? Three prominent researchers discuss how new instruments and observational techniques may find ... > full story -
Ultra-Fast Outflows Help Monster Black Holes Shape Their Galaxies
February 27, 2012 — A curious correlation between the mass of a galaxy's central black hole and the velocity of stars in a vast, roughly spherical structure known as its bulge has puzzled astronomers for years. ... > full story -
Dwarf Galaxy Questions Current Galaxy Formation Models
February 27, 2012 — Researcher observed the dwarf galaxy I Zw 18, and found that much of what is known about galaxy formation and evolution might need substantial ... > full story -
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
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