BlogArena

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

20. Oct 2019

September 9, 2014
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What lit up the universe?

New research from UCL shows we will soon uncover the origin of the ultraviolet light that bathes the cosmos, helping scientists understand how galaxies were built. The study published in The Astrophysical Journal Letters by UCL cosmologists Dr Andrew Pontzen … Continue reading

June 11, 2014
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Nearest Bright ‘Hypervelocity Star’ Found

Speeding at 1 Million mph, It Probes Black Hole and Dark Matter A University of Utah-led team discovered a “hypervelocity star” that is the closest, second-brightest and among the largest of 20 found so far. Speeding at more than 1 … Continue reading

June 5, 2014
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NASA’s WISE Findings Poke Hole in Black Hole ‘Doughnut’ Theory

A survey of more than 170,000 supermassive black holes, using NASA’s Wide-field Infrared Survey Explorer (WISE), has astronomers reexamining a decades-old theory about the varying appearances of these interstellar objects. The unified theory of active, supermassive black holes, first developed … Continue reading

February 17, 2014
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Black holes do not exist as we thought they did

On January 24, the journal Nature published an article entitled “There are no black holes.” 1 It doesn’t take much to spark controversy in the world of physics…But what does this really mean? In a brief article published on arXiv, … Continue reading

December 22, 2013
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Searching for Cosmic Accelerators via IceCube

Berkeley Lab Researchers Part of an International Hunt In our universe there are particle accelerators 40 million times more powerful than the Large Hadron Collider (LHC) at CERN. Scientists don’t know what these cosmic accelerators are or where they are … Continue reading

September 7, 2013
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Catching Black Holes on the Fly

NASA’s black-hole-hunter spacecraft, the Nuclear Spectroscopic Telescope Array, or NuSTAR, has “bagged” its first 10 supermassive black holes. The mission, which has a mast the length of a school bus, is the first telescope capable of focusing the highest-energy X-ray … Continue reading

June 17, 2013
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Black Hole Naps amidst Stellar Chaos

Nearly a decade ago, NASA’s Chandra X-ray Observatory caught signs of what appeared to be a black hole snacking on gas at the middle of the nearby Sculptor galaxy. Now, NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR), which sees higher-energy X-ray … Continue reading

February 28, 2013
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NASA’s NuSTAR Helps Solve Riddle of Black Hole Spin

PASADENA, Calif. — Two X-ray space observatories, NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) and the European Space Agency’s XMM-Newton, have teamed up to measure definitively, for the first time, the spin rate of a black hole with a mass 2 … Continue reading