CMB

New Results from Planck: It Doesn’t Look Good For BICEP2

by Brian Koberlein September 24, 2014

One of the recent sagas in cosmology began with the BICEP2 press conference announcing evidence of early cosmic inflation. There was some controversy since the press release was held before the paper was peer reviewed. The results were eventually published in Physical Review Letters, though with a more cautious conclusion than the original press release. […]

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Hot Gas Bridge Discovered Connecting Galaxy Clusters

by Jason Major November 20, 2012

An “bridge” of hot gas stretches between galaxy clusters Abell 401 and Abell 399 It may not be good practice to burn bridges but this is one super-heated bridge that astronomers were happy to find: an enormous swath of hot gas connecting two galaxy clusters 10 million light-years apart, and nearly a billion light-years away. Jason […]

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Spitzer Captures Ancient Fireworks of First Objects in the Universe

by Nancy Atkinson June 7, 2012

The Spitzer Space Telescope has looked back in time to see what scientists called the “faint, lumpy glow” given off by the very first objects in the Universe, and these ancient objects obviously provided some early cosmic fireworks. While they are too faint and distant to figure out what the individual objects are – they […]

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Polar Telescope Casts New Light On Dark Energy And Neutrino Mass

by Jason Major April 5, 2012

Located at the southermost point on Earth, the 280-ton, 10-meter-wide South Pole Telescope has helped astronomers unravel the nature of dark energy and zero in on the actual mass of neutrinos — elusive subatomic particles that pervade the Universe and, until very recently, were thought to be entirely without measureable mass. Jason Major on Google+

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Planck Spacecraft Loses Its Cool(ant) But Keeps Going

by Nancy Atkinson January 17, 2012

After two and a half years of observing the Cosmic Microwave Background, the ESA Planck spacecraft’s High Frequency Instrument ran out of its on-board coolant gases over this past weekend, reaching the end of its very successful mission. But that doesn’t mean the end for Planck observations. The Low Frequency Instrument, which does not need […]

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