BlogArena

General blog about anything and everything of everyday's life.

22. Nov 2019

November 21, 2012
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BOSS Quasars Unveil a New Era in the Expansion History of the Universe

Berkeley Lab scientists and their Sloan Digital Sky Survey colleagues use quasars to probe dark energy over 10 billion years in the past BOSS, the Baryon Oscillation Spectroscopic Survey, is mapping a huge volume of space to measure the role … Continue reading

April 4, 2012
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Clocking an Accelerating Universe: First Results from BOSS

Berkeley Lab scientists are the 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. … Continue reading

October 17, 2011
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Astrophysicists Find Evidence of Black Holes Ripping Stars Apart

*Sifting through observation data obtained of more than 2 million galaxies, a research team including UA astronomer Dennis Zaritsky has discovered phenomena telling of stars dying a violent death. Astrophysicists at the University of Arizona and elsewhere have found evidence … Continue reading

May 26, 2011
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Just Four Percent of Galaxies Have Neighbors Like the Milky Way

*Our home galaxy belongs to a rare subset among the billions that populate the cosmos* How unique is the Milky Way? To find out, a group of researchers led by Stanford University astrophysicist Risa Wechsler compared the Milky Way to … Continue reading

May 7, 2011
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Measuring the Distant Universe in 3-D

*Berkeley Lab-led BOSS proves it can do the job with quasars* The biggest 3-D map of the distant universe ever made, using light from 14,000 quasars — supermassive black holes at the centers of galaxies many billions of light years … Continue reading