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Spitzer nets thousands of galaxies in a giant cluster

05-28-2007 · EurekAlert!

In just a short amount of time, NASA's Spitzer Space Telescope has bagged more than a thousand previously unknown dwarf galaxies in a giant cluster of galaxies.

Keywords: spitzer, nets, thousands, galaxies, giant, cluster, net, thousand, galaxy

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X-ray satellites discover the biggest collisions in the Universe
07-18-2007 · European Space Agency (ESA)
The orbiting X-ray telescopes XXM-Newton and Chandra have caught a pair of galaxy clusters merging into a giant cluster. The discovery adds to existing evidence that galaxy clusters can collide faster than previously thought.
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Hubble and Spitzer Space Telescopes find 'Lego-block' galaxies in early universe
09-06-2007 · EurekAlert!
The NASA/ESA Hubble Space Telescope and the NASA Spitzer Space Telescope have joined forces to discover nine of the smallest, faintest, most compact galaxies ever observed in the distant universe. Blazing with the brilliance of millions of stars, each of the newly discovered galaxies is a 100 to 1,000 times smaller than our Milky Way Galaxy.
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Galactic Émigré: Incoming dwarf galaxy could feed its larger kin
06-09-2007 · Science News Online
A dwarf galaxy at the periphery of the giant Andromeda galaxy may be a pristine building block for forming galaxies in the modern-day universe.
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Gas 'finger' points to galaxies' future
02-04-2008 · EurekAlert!
Like a fork piercing a fried egg, a giant finger of hydrogen gas is poking through our Milky Way Galaxy from outside, astronomers using CSIRO radio telescopes at Parkes and Narrabri have found. The location of the intrusion may give a crucial clue to the fate of the little galaxies the gas flows from, the Large and Small Magellanic Clouds.
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Gargantuan galaxy NGC 1132 -- a cosmic fossil?
02-05-2008 · EurekAlert!
The NASA/ESA Hubble Space Telescope has captured a new image of the galaxy NGC 1132 which is, most likely, a cosmic fossil -- the aftermath of an enormous multi-galactic pile-up, where the carnage of collision after collision has built up a brilliant but fuzzy giant elliptical galaxy far outshining typical galaxies.
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The giant that turned out to be a dwarf
03-07-2007 · EurekAlert!
New data obtained on the apparent celestial couple, NGC 5011 B and C, taken with the 3.6-m ESO telescope, reveal that the two galaxies are not at the same distance, as was believed for the past 23 years. The observations show that NGC 5011C is not a giant, but a dwarf galaxy, an overlooked member of a group of galaxies in the vicinity of the Milky Way.
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Monster galaxy pileup sighted
08-06-2007 · EurekAlert!
Four galaxies are slamming into each other and kicking up billions of stars in one of the largest cosmic smash-ups ever observed.The clashing galaxies, spotted by NASA's Spitzer Space Telescope and the WIYN Telescope, will eventually merge into a single, behemoth galaxy up to 10 times as massive as our own Milky Way. This rare sighting provides an unprecedented look at how the most massive galaxies in the universe form.
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Dark matter mystery deepens in cosmic 'train wreck'
08-16-2007 · EurekAlert!
Astronomers have discovered a chaotic scene unlike any witnessed before in a cosmic "train wrecK" between giant galaxy clusters. NASA's Chandra X-ray Observatory and optical telescopes revealed a dark matter core that was mostly devoid of galaxies, which may pose problems for current theories of dark matter behavior.
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Hubble sees 'Comet Galaxy' being ripped apart by galaxy cluster
03-02-2007 · EurekAlert!
The NASA/ESA Hubble Space Telescope, in collaboration with several other ground- and space-based telescopes, has captured a galaxy being ripped apart by a galaxy cluster's gravitational field and harsh environment. The finding sheds light on the mysterious process by which gas-rich spiral-shaped galaxies might evolve into gas-poor irregular- or elliptical-shaped galaxies over billions of years. The new observations also show one mechanism to form the millions of "homeless" stars seen scattered throughout galaxy clusters.
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Supernova Radioisotopes Show Sun Was Born In Star Cluster, Scientists Say
10-05-2006 · ScienceDaily
The death of a massive nearby star billions of years ago offers evidence the sun was born in a star cluster, say astronomers at the University of Illinois at Urbana-Champaign. Rather than being an only child, the sun could have hundreds or thousands of celestial siblings, now dispersed across the heavens.
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