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Glittering Jewels of Messier 9
March 16, 2012 — The NASA/ESA Hubble Space Telescope has produced the so far most detailed image so far of Messier 9, a globular star cluster located close to the centre of the galaxy. This ball of stars is too faint ... > full story -
First Atomic Hydrogen Spectral Line Images of a Nearby Galaxy
March 15, 2012 — Astronomers have now observed the radio emission from the neutral hydrogen gas (HI) in a nearby galaxy. Hydrogen gas emits radio emission in a spectral line at a very specific frequency of 1420 ... > full story -
Hubble Finds Quasars Acting as Gravitational Lenses
March 15, 2012 — Astronomers have found several examples of galaxies containing quasars, which act as gravitational lenses, amplifying and distorting images of galaxies aligned behind ... > full story -
Getting a Full Picture of an Elusive Subject: Astronomers Map Dark Matter in 3-D in Galaxy Cluster
March 14, 2012 — Two teams of astronomers have used data from NASA's Chandra X-ray Observatory and other telescopes to map the distribution of dark matter in a galaxy cluster known as Abell 383, which is located ... > full story -
Recycling Galaxies Caught in the Act
March 14, 2012 — When astronomers add up all the gas and dust contained in ordinary galaxies (like our own Milky Way), they find a discrepancy: there is not nearly enough matter for stars to form at the observed ... > full story -
Citizen Scientists Reveal a Bubbly Milky Way
March 7, 2012 — A team of volunteers has pored over observations from NASA's Spitzer Space Telescope and discovered more than 5,000 "bubbles" in the disk of our Milky Way galaxy. Young, hot stars blow these bubbles ... > full story -
Galaxies Get Up Close and Personal: Collisions in Young Galaxy Cluster
March 7, 2012 — The VLT Survey Telescope (VST) at the European Southern Observatory's Paranal Observatory in Chile has imaged a fascinating collection of interacting galaxies in the Hercules galaxy cluster. The ... > full story -
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
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