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Hubble Sees Galaxy in a Spin
October 19, 2012 — NGC 3344 is a glorious spiral galaxy around half the size of the Milky Way, which lies 25 million light-years distant. We are fortunate enough to see NGC 3344 face-on, allowing us to study its ... > full story -
Poetry in Motion: Gemini Observatory Releases Image of Rare Polar Ring Galaxy
October 18, 2012 — Polar-ring galaxies are peculiar objects. Astronomers have found only a handful of them, so not much is known about their origins. Most have an early-type spiral system, called a lenticular galaxy, ... > full story -
New Type of Cosmic Ray Discovered After 100 Years
October 16, 2012 — Using the European X-ray astronomy satellite XMM-Newton, researchers have discovered a new source of cosmic rays. In the vicinity of the remarkable Arches cluster, near the center of the Milky Way, ... > full story -
When Galaxies Eat Galaxies: Gravity Lenses Suggest Big Collisions Make Galaxies Denser
October 12, 2012 — Using gravitational "lenses" in space, astronomers have discovered that the centers of the biggest galaxies are growing denser -- evidence of repeated collisions and mergers by massive galaxies with ... > full story -
New Surveys Peer Through Dust to Reveal Giant Supermassive Black Holes
October 8, 2012 — Scientists have used cutting-edge infrared surveys of the sky to discover a new population of enormous, rapidly growing supermassive black holes in the early Universe. The black holes were previously ... > full story -
NASA's Swift Satellite Discovers a New Black Hole in Milky Way Galaxy
October 5, 2012 — NASA's Swift satellite recently detected a rising tide of high-energy X-rays from a source toward the center of our Milky Way galaxy. The outburst, produced by a rare X-ray nova, announced the ... > full story -
Mass of Dark Matter Revealed by Precise Measurements of the Galaxy
October 5, 2012 — Astronomers have succeeded in precisely determining the astronomical yardstick for the Galaxy based upon precise distance measurements from advanced radio telescopes. The new findings are that the ... > full story -
Star Discovered Racing Around Black Hole at Center of Our Galaxy: Crucial to Revealing Fabric of Space and Time
October 4, 2012 — Astronomers report the discovery of a remarkable star that orbits the enormous black hole at the center of our Milky Way galaxy in a blistering 11-and-a-half years, the shortest known orbit of any ... > full story -
Surprising Black Hole Discovery Changes Picture of Globular Star Clusters
October 3, 2012 — An unexpected discovery is forcing scientists to rethink their understanding of the environment in globular star clusters, tight-knit collections containing hundreds of thousands of stars. The ... > full storyMore: -
Case of Missing Quasar Gas Clouds Now Solved
October 2, 2012 — The case of the missing quasar gas clouds has been solved. A new article describes 19 distant quasars whose giant clouds of gas seem to have disappeared in just a few ... > full story
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