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Advantages of living in the dark: The multiple evolution events of 'blind' cavefishAdvantages of living in the dark: The multiple evolution events of 'blind' cavefish

Snakes improve search-and-rescue robotsSnakes improve search-and-rescue robots

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Magnetic actuation enables nanoscale thermal analysisMagnetic actuation enables nanoscale thermal analysis

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Film coatings made from wheyFilm coatings made from whey

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All Articles Tagged As: galaxy clusters


The wild early lives of today's most massive galaxies (2/1/2012)

The wild early lives of today's most massive galaxiesUsing the APEX telescope, 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 saw the birth of new stars abruptly cut short, leaving them as massive -- but passive -- galaxies of aging stars in the present day. Astronomers also have a likely culprit for the sudden end to the starbursts: the emergence of supermassive black holes. ...> Full Article



Hubble pinpoints furthest protocluster of galaxies ever seen (1/18/2012)

Hubble pinpoints furthest protocluster of galaxies ever seenUsing the NASA/ESA Hubble Space Telescope, astronomers have uncovered a cluster of galaxies in the initial stages of development, making it the most distant such grouping ever observed in the early universe. ...> Full Article


When galaxy clusters collide (1/15/2012)

The collision of two clusters of galaxies 5 billion light years away could help astronomers better understand "dark matter," the invisible stuff that makes up a big chunk of our universe. UC Davis graduate student William Dawson discussed the work in a press briefing at the annual meeting of the American Astronomical Society in Austin, Texas. ...> Full Article



Hubble pinpoints farthest protocluster of galaxies ever seen (1/15/2012)

Hubble pinpoints farthest protocluster of galaxies ever seenUsing NASA's Hubble Space Telescope, astronomers have uncovered a cluster of galaxies in the initial stages of development. It is the most distant such grouping ever observed in the early universe. ...> Full Article



El Gordo -- a 'fat' distant galaxy cluster (1/14/2012)

El Gordo -- a 'fat' distant galaxy clusterAn extremely hot, massive young galaxy cluster -- the largest ever seen in the distant Universe -- has been studied by an international team using ESO's Very Large Telescope in the Atacama Desert in Chile along with NASA's Chandra X-ray Observatory and the Atacama Cosmology Telescope. The new results are being announced on Jan. 10, 2012, at the 219th meeting of the American Astronomical Society in Austin, Texas. ...> Full Article



Study pinpoints farthest developing galaxy cluster ever found (1/13/2012)

Study pinpoints farthest developing galaxy cluster ever foundA team of researchers led by the University of Colorado Boulder has used NASA's Hubble Space Telescope to uncover a cluster of galaxies in the initial stages of construction -- the most distant such grouping ever observed in the early universe. ...> Full Article



Light from galaxy clusters confirm theory of relativity (10/7/2011)

Light from galaxy clusters confirm theory of relativityObservations in astronomy are based on light emitted from stars. At the same time all interpretations in astronomy are based on the correctness of the theory of relatively, but it has never before been possible to test the theory on scales larger than the solar system. Now astrophysicists at the Niels Bohr Institute have measured how the light is affected by gravity on its way out of galaxy clusters. The observations confirm the theoretical predictions. ...> Full Article



Rutgers, Chilean astrophysicists discover new galaxy clusters revealed by cosmic 'shadows' (11/2/2010)

Rutgers, Chilean astrophysicists discover new galaxy clusters revealed by cosmic 'shadows'An international team of scientists led by Rutgers astrophysicists have discovered 10 new massive galaxy clusters from a large, uniform survey of the southern sky. The survey was conducted using a breakthrough technique that detects "shadows" of galaxy clusters on the cosmic microwave background radiation, a relic of the "big bang" that gave birth to the universe. ...> Full Article



Ghosts of the future (10/19/2010)

Ghosts of the futureAstronomers using the South Pole Telescope report that they have discovered the most massive galaxy cluster yet seen at a distance of seven billion light-years. The cluster (designated SPT-CL J0546-5345) weighs in at around 800 trillion suns, and holds hundreds of galaxies. ...> Full Article



Mysterious cosmic 'dark flow' tracked deeper into universe (3/16/2010)

Mysterious cosmic 'dark flow' tracked deeper into universeDistant galaxy clusters mysteriously stream at a million miles per hour along a path roughly centered on the southern constellations Centaurus and Hydra. A new study led by Alexander Kashlinsky at NASA's Goddard Space Flight Center in Greenbelt, Md., tracks this collective motion -- dubbed the "dark flow" -- to twice the distance originally reported. ...> Full Article



Shedding light on the cosmic skeleton (11/5/2009)

Shedding light on the cosmic skeletonAstronomers have tracked down a gigantic, previously unknown assembly of galaxies located almost seven billion light-years away from us. The discovery, made possible by combining two of the most powerful ground-based telescopes in the world, is the first observation of such a prominent galaxy structure in the distant Universe, providing further insight into the cosmic web and how it formed. ...> Full Article


Galaxy cluster smashes distance record (10/23/2009)

Galaxy cluster smashes distance recordThe most distant galaxy cluster yet has been discovered by combining data from NASA's Chandra X-ray Observatory and optical and infrared telescopes. The cluster is located about 10.2 billion light years away, and is observed as it was when the universe was only about a quarter of its present age. ...> Full Article


Largest ever survey of very distant galaxy clusters completed (7/1/2009)

Largest ever survey of very distant galaxy clusters completedAn international team of researchers led by Gillian Wilson, an astronomer at the University of California, Riverside, has completed the largest ever survey designed to find very distant clusters of galaxies. Named the Spitzer Adaptation of the Red-sequence Cluster Survey, "SpARCS" detects galaxy clusters using deep ground-based optical observations. SpARCS is designed to find clusters, snapped as they appeared long ago in time, when the universe was 6 billion years old or younger. ...> Full Article


Suzaku snaps first complete X-ray view of a galaxy cluster (5/30/2009)

Suzaku snaps first complete X-ray view of a galaxy clusterThe joint Japan-US Suzaku mission is providing new insight into how assemblages of thousands of galaxies pull themselves together. For the first time, Suzaku has detected X-ray-emitting gas at a cluster's outskirts, where a billion-year plunge to the center begins. ...> Full Article


Cosmic heavyweights in free-for-all (4/20/2009)

Cosmic heavyweights in free-for-allThe most crowded collision of galaxy clusters has been identified by combining information from three different telescopes. This result gives scientists a chance to learn what happens when some of the largest objects in the Universe go at each other in a cosmic free-for-all. ...> Full Article


Exceptionally deep view of strange galaxy (2/10/2009)

Exceptionally deep view of strange galaxyA spectacular new image of an unusual spiral galaxy in the Coma Galaxy Cluster has been created from data taken by the Advanced Camera for Surveys on the NASA/ESA Hubble Space Telescope. It reveals fine details of the galaxy, NGC 4921, as well as an extraordinary rich background of more remote galaxies stretching back to the early universe. ...> Full Article


Dark energy found stifling growth in universe (12/20/2008)

Dark energy found stifling growth in universeFor the first time, astronomers have clearly seen the effects of 'dark energy' on the most massive collapsed objects in the Universe using NASA's Chandra X-ray Observatory. By tracking how dark energy has stifled the growth of galaxy clusters and combining this with previous studies, scientists have obtained the best clues ever about what dark energy is and what the destiny of the universe could be. ...> Full Article


Ghostly glow reveals galaxy clusters in collision (10/19/2008)

Ghostly glow reveals galaxy clusters in collisionA team of scientists have detected long wavelength radio emission from a colliding, massive galaxy cluster which, surprisingly, is not detected at the shorter wavelengths typically seen in these objects. ...> Full Article


A Clash of Clusters Provides Another Clue to Dark Matter (8/28/2008)

A Clash of Clusters Provides Another Clue to Dark MatterAnother powerful collision of galaxy clusters has been captured with NASA's Chandra X-ray Observatory and Hubble Space Telescope ...> Full Article


Astronomers search for orphan stars using newly upgraded telescope (5/28/2008)

Astronomers search for orphan stars using newly upgraded telescopeNew camera sees first light ...> Full Article


Old galaxies stick together in the young universe (4/9/2008)

Old galaxies stick together in the young universeAstronomers have developed the most sensitive infrared map of the distant universe ever produced, revealing the origins of the most massive galaxies in the cosmos ...> Full Article


Giant Particle Accelerator Discovered In The Sky (1/28/2008)

Giant Particle Accelerator Discovered In The SkyESA's orbiting gamma-ray observatory, Integral, has made the first unambiguous discovery of highly energetic X-rays coming from a galaxy cluster. The find has shown the cluster to be a giant particle accelerator. ...> Full Article

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