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Latest Dark energy Stories

2012-03-30 08:27:44

Berkeley Lab scientists are leaders of BOSS, the Baryon Oscillation Spectroscopic Survey- They and their colleagues in the third Sloan Digital Sky Survey have announced the most precise measurements ever made of the era when dark energy turned on Some six billion light years ago, almost halfway from now back to the big bang, the universe was undergoing an elemental change. Held back until then by the mutual gravitational attraction of all the matter it contained, the universe had been...

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2012-03-29 07:28:38

The Sloan Digital Sky Survey (SDSS-III)  announced the most accurate measurements yet of the distances to galaxies in the faraway universe, giving an unprecedented look at the time when the universe first began to expand at an ever-increasing rate. Scientists from the University of Portsmouth and the Max-Planck Institute for Extraterrestrial Physics will present the new results in a press conference at 10:00 BST on Friday, March 30th at the National Astronomy Meeting in Manchester....

2012-01-25 08:00:00

AUSTIN, Texas, Jan. 25, 2012 /PRNewswire/ -- Independent Media Productions, Inc., an Austin video production company, has been honored with a Telly Award. "Dark Energy: Speeding Up the Universe" is one video in a series of astronomy-related videos produced by Independent Media Productions for the University of Texas at Austin's Texas Cosmology Center. The Telly Award is the premier award honoring outstanding video and film productions. Dark Energy is a complex theory to explain, and...

Galactic Brightness Helps Build Precision Model Of The Universe
2012-01-12 04:39:50

Berkeley Lab scientists and their Sloan Digital Sky Survey colleagues use galactic brightness to build a precision model of the cosmos Since 2000, the three Sloan Digital Sky Surveys (SDSS I, II, III) have surveyed well over a quarter of the night sky and produced the biggest color map of the universe in three dimensions ever. Now scientists at the U.S. Department of Energy´s Lawrence Berkeley National Laboratory (Berkeley Lab) and their SDSS colleagues, working with DOE´s...

2012-01-11 12:25:00

WASHINGTON, Jan. 11, 2012 /PRNewswire-USNewswire/ -- NASA's Hubble Space Telescope has looked deep into the distant universe and detected the feeble glow of a star that exploded more than 9 billion years ago. The sighting is the first finding of an ambitious survey that will help astronomers place better constraints on the nature of dark energy, the mysterious repulsive force that is causing the universe to fly apart ever faster. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO)...

Hubble Breaks New Ground With Distant Supernova Discovery
2012-01-11 14:26:21

NASA's Hubble Space Telescope has looked deep into the distant universe and detected the feeble glow of a star that exploded more than 9 billion years ago. The sighting is the first finding of an ambitious survey that will help astronomers place better constraints on the nature of dark energy, the mysterious repulsive force that is causing the universe to fly apart ever faster. "For decades, astronomers have harnessed the power of Hubble to unravel the mysteries of the universe," said John...

2011-10-12 22:59:30

New Laureates include NSF-affiliated researchers in Physics and Economics With the last of the 2011 Nobel Laureates announced yesterday, it is noteworthy that five of these recipients have conducted research supported by the National Science Foundation (NSF)--Saul Perlmutter, Brian P. Schmidt and Adam G. Riess received the Nobel Prize in Physics; and Thomas J. Sargent and Christopher A. Sims received the Nobel Prize in Economics. "The international community of scientists once again...

Survey Hints At Origin Of Type Ia Supernovae
2011-10-08 05:13:10

The largest survey to date of distant exploding stars is giving astronomers new clues to what´s behind the Type Ia supernovae they use to measure distances across the cosmos. These stellar explosions helped astronomers conclude more than a decade ago that dark energy is accelerating the expansion of the universe, and today (Tuesday, Oct. 4) earned the discoverers — including UC Berkeley physicist Saul Perlmutter — the 2011 Nobel Prize in Physics. But what caused them was a...

2011-10-05 08:00:00

AUSTIN, Texas, Oct. 5, 2011 /PRNewswire/ -- Independent Media Productions, Inc., an Austin video production company, has won a Videographer Award of Excellence. The winning project was an educational video, produced for the University of Texas at Austin's Texas Cosmology Center, titled "Dark Energy: Speeding Up the Universe." The Videographer Awards is an international awards competition that recognizes outstanding achievement in video productions. The goal of the video, one in a series,...

Image 1 - ESA Selects Next Two Science Missions
2011-10-04 11:53:02

The powerful influence of the Sun and the nature of the mysterious 'dark energy' motivate ESA´s next two science missions. Solar Orbiter and Euclid were selected today by ESA's Science Programme Committee for implementation, with launches planned for 2017 and 2019. These two missions are medium-class missions and are the first in ESA's Cosmic Vision 2015-2025 Plan. Solar Orbiter will venture closer to the Sun than any previous mission. It is designed to make major breakthroughs in...


Latest Dark energy Reference Libraries

Cosmology
2014-01-12 00:00:00

Image Caption: The Hubble Extreme Deep Field (XDF) was completed in September 2012 and shows the farthest galaxies ever photographed by humans. Each speck of light in the photo is an individual galaxy, some of them as old as 13.2 billion years; the observable universe is estimated to contain more than 200 billion galaxies. Credit: NASA/Wikipedia What is Cosmology? I once commented to an acquaintance that I was fascinated by the field of Cosmology, and mused that if I had more time, I...

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2004-10-19 04:45:41

Quintessence (Dark Energy) -- Quintessence or dark energy is a hypothetical form of energy postulated to exist in order to explain observations of an accelerating universe. This energy would act like a vacuum pressure, pushing things apart. Other attempts to explain these recent observations involve a non-zero cosmological constant, which has the same effect. Indeed, sometimes quintessence is said to result in a non-zero cosmological constant, and conversely a non-zero cosmological...

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2004-10-19 04:45:40

Wilkinson Microwave Anisotropy Probe (WMAP) -- The Wilkinson Microwave Anisotropy Probe (WMAP) was launched on June 30, 2001 at 3:46 p.m. EDT at Cape Canaveral Air Force Station, Florida, USA. The goal of WMAP was to map out minute differences in the Cosmic Microwave Background (CMB) radiation which would help test theories of the nature of the universe. On February 11, 2003, the public relations group from NASA made a press release regarding the age and composition of the universe....

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