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Latest Reionization Stories

Seeing The Early Universe In A New Way
2013-07-10 11:57:08

ICRAR Solar storms, space junk and the formation of the Universe are about to be seen in an entirely new way with the start of operations today by the $51 million Murchison Widefield Array (MWA) radio telescope. The first of three international precursors to the $2 billion Square Kilometre Array (SKA) telescope, the MWA is located in a remote pocket of outback Western Australia. It is the result of an international project led by Curtin University and was officially turned on this...

Astronomers Discover New Way To Map Out Quasars
2013-07-01 12:24:07

Lee Rannals for redOrbit.com - Your Universe Online Astronomers said at a Royal Astronomical Society Meeting in St Andrews, Scotland on Monday that they have found a new way to map out quasars. Quasars are energetic and luminous central regions found in distant galaxies. When a star passes too close to a giant black hole, it is shredded by the gravitational field, producing a flare-up in the brightness of an otherwise normal looking galaxy. Astronomers observed this effect and found...

PAPER Instrument In The Karoo Producing Ground-breaking Science And Spectacular Cosmic Images
2013-05-10 09:57:52

SKA Scientific studies done with the "PAPER" array, one of the world-class scientific instruments in South Africa's Karoo Radio Astronomy Reserve, is producing ground-breaking science and spectacular cosmic images, resulting in several important articles in top astronomy journals. The primary goal of PAPER (Precision Array to Probe the Epoch of Reionization) is to detect emission from the neutral gas that pervaded the universe before the first galaxies and black holes were formed. This...

Green Pea Galaxies Could Offer Astronomers An Understanding Of The Early Universe
2013-04-03 16:49:59

University of Michigan The rare Green Pea galaxies discovered by the general public in 2007 could help confirm astronomers' understanding of reionization, a pivotal stage in the evolution of the early universe, say University of Michigan researchers. Reionization occurred a few hundred million years after the Big Bang as the first stars were turning on and forming the first galaxies. During this period, the space between the galaxies changed from an opaque, neutral fog to a transparent...

Sideline Quasars May Have Hampered Galaxy Formation
2013-03-22 04:19:47

redOrbit Staff & Wire Reports - Your Universe Online Astronomers from the University of Colorado Boulder (CU-Boulder) believe that so-called sideline quasars located on the outer fringes of a larger, brighter active galactic nucleus might have joined forces with it to prevent the formation of small galaxies billions of years ago. Michael Shull, a professor of astrophysical and planetary sciences at the university´s Center for Astrophysics and Space Astronomy, and research...

BOSS Survey Reveals 48,000 Quasars
2012-11-13 10:38:57

Lee Rannals for redOrbit.com - Your Universe Online The Baryon Oscillation Spectroscopic Survey (BOSS) has announced the first major result of a new mapping technique, unveiling over 48,000 quasars. BOSS is the largest program of the third Sloan Digital Sky Survey (SDSS) and is mapping a huge volume of space to measure the role of dark energy in the evolution of the universe. “No technique for dark energy research has been able to probe this ancient era before, a time when...

Spitzer And Hubble Telescopes Discover Furthest Galaxy Ever
2012-09-19 19:01:35

Lee Rannals for redOrbit.com — Your Universe Online A long time ago, in a galaxy far, far away, light took off, then traveled 13.2 billion light-years until it was finally picked up by NASA's telescopes. Astronomers have identified the furthest galaxy ever using NASA's Spitzer and Hubble space telescopes. The light captured by the telescope was from when the universe was just 500 million years old, according to NASA. "This galaxy is the most distant object we have ever...

2012-09-19 10:20:22

WASHINGTON, Sept. 19, 2012 /PRNewswire-USNewswire/ -- With the combined power of NASA's Spitzer and Hubble space telescopes, as well as a cosmic magnification effect, astronomers have spotted what could be the most distant galaxy ever seen. Light from the young galaxy captured by the orbiting observatories first shone when our 13.7-billion-year-old universe was just 500 million years old. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The far-off galaxy existed within an...

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2012-09-18 17:49:27

Lee Rannals for redOrbit.com — Your Universe Online Researchers are finding ways to map out the spread and structure of the universe through the light of quasars. Scientists have developed a technique that could offer up a never before seen look back to a time just after the Big Bang. They found, while analyzing the visible light from a small group of quasars, that patterns of light variation over time were consistent from one quasar to another when corrected for the celestial...

Early Universe Lit Up By Explosion Of Growth
2012-09-07 05:29:14

April Flowers for redOrbit.com - Your Universe Online A new study from the University of California, Berkeley indicates that the birth of the first massive galaxies that lit up the early universe was an explosive event, happening faster and ending sooner than suspected. Around 13 billion years ago, when the universe was about 750 million years old, extremely bright, active galaxies formed and fully illuminated the universe, according to Oliver Zahn, a postdoctoral fellow at the Berkeley...