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Latest Physical cosmology Stories

Hubble Findings Cast Doubt On Dark Matter Theories
2012-03-03 07:42:50

The discovery of a dark matter mass left behind after what is being called a wreck between massive clusters of galaxies has experts questioning current theories regarding the invisible substance believed to make up more than 80% of the universe. According to a Friday press release from NASA, currently scientists theorize that galaxies should be anchored to dark matter, even in the event of a collision. However, astronomers using information gathered from the Hubble Telescope have...

2012-02-18 01:41:16

ALMA and Jansky VLA enabling forefront research at frontiers of astrophysics Two new and powerful research tools are helping astronomers gain key insights needed to transform our understanding of important processes across the breadth of astrophysics. The Atacama Large Millimeter/submillimeter Array (ALMA), and the newly-expanded Karl G. Jansky Very Large Array (VLA) offer scientists vastly improved and unprecedented capabilities for frontier research. The cutting-edge research enabled...

Cluster Of Stars Survived Massacre 13 Billion Years Ago
2012-02-14 13:37:27

Astronomers have found a cluster of stars that they say survived a massacre 13 billion years ago. The team used computer simulations to look at how the compact groups of stars surrounding our Milky Way galaxy were formed. There are about 200 compact groups sitting close to our galaxy, each containing up to a million stars. The researchers ran simulations of isolated and colliding galaxies, in which they included a model for formation and destruction of stellar clusters. Once a...

Image 1 - Planck Getting Closer To The Cosmic Blueprint
2012-02-13 07:23:13

ESA´s Planck mission has revealed that our Galaxy contains previously undiscovered islands of cold gas and a mysterious haze of microwaves. These results give scientists new treasure to mine and take them closer to revealing the blueprint of cosmic structure. The new results are being presented this week at an international conference in Bologna, Italy, where astronomers from around the world are discussing the mission´s intermediate results. These results include the first...

2012-01-26 12:36:24

To understand long-range interactions between particles at the micrometric scale, researchers utilize methods which are used to study the formation of our universe. Scientists have found that micron-size particles which are trapped at fluid interfaces exhibit a collective dynamic that is subject to seemingly unrelated governing laws. These laws show a smooth transitioning from long-ranged cosmological-style gravitational attraction down to short-range attractive and repulsive forces. The...

Image 1 - Astronomers Find Link To Early Universe And Today's Massive Galaxies
2012-01-25 14:35:15

[ Video 1 ] | [ Video 2 ] Astronomers have found the strongest link ever between the most powerful bursts of star formation in the Universe, and the most massive galaxies found today. The galaxies saw the birth of new stars cut short, leaving them as massive galaxies of aging stars today, according to the new research. The astronomers also found that the emergence of supermassive black holes played a role in causing the sudden end to the starburst. Astronomers used the LABOCA...

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...

World's Greatest Minds Answer: 'What's Your Favorite Theory?'
2012-01-18 05:48:29

At the beginning of each year, master of ceremonies for the science website Edge.org John Brockman asks his cadre of world-renowned thinkers to reply to a single question of eminent significance. This year, he prodded these legendary brains to answer the slightly cryptic: "What is your favorite deep, elegant or beautiful explanation?" In previous years, Brockman has probed scientific minds to name the most important invention of the last two millennia or to explain how the Internet is...

Planck's HFI Completes Survey Of Early Universe
2012-01-17 04:52:47

The High Frequency Instrument on ESA's Planck mission has completed its survey of the remnant light from the Big Bang. The sensor ran out of coolant on Saturday as expected, ending its ability to detect this faint energy. "Planck has been a wonderful mission; spacecraft and instruments have been performing outstandingly well, creating a treasure trove of scientific data for us to work with," said Jan Tauber, ESA's Planck Project Scientist. Less than half a million years after the...

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...


Latest Physical cosmology 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...

45_d4a20fda769b165e44826492e9e54549
2010-09-16 15:18:29

The Virgo Cluster consists of galaxies at a distance of around 59 Mly away in the constellation Virgo. Containing between 1300 to 2000 galaxies the Virgo Cluster is the heart of the Local Supercluster. Its mass is estimated at 1.2 × 1015 M☉ out to 8 degrees of the cluster's center or a radius of about 2.2 Mpc. Most of the brighter galaxies in the cluster were discovered by Charles Messier in the late 1770's and early 1780's, including the giant elliptical Messier 87. Messier...

45_03c916cf051c1a581c0d52b3ccdd7561
2010-09-13 16:56:08

The Coma Cluster (Abell 1656), along with the Leo Cluster, is one of two major clusters compromising the Coma Supercluster. It contains over 1000 identified galaxies. Most of the galaxies in the center of the Coma Cluster are elliptical galaxies including both dwarf and giant. However the center is dominated by NGC 4874 and NGC 4889, two giant elliptical galaxies. The brightest galaxies are visible, a few degrees north of the galactic pole, with an amateur telescope larger than 20 cm. The...

67_4ae26d06e7989cbc4cd9f57abd6295f5
2010-09-08 16:02:39

As of 2009, JKCS 041 is a group of galaxies with the distinction of being the farthest away group from Earth ever observed. Seen at redshift 1.9, it is estimated to be 10.2 billion light years away. The cluster is located within the constellation Cetus at a photometrically determined redshift of z=1.9 at right ascension 2h 26m 44s declination -04° 41"² 37"³ (J2000.0).

45_b90d45a4e7d89d873d39705549e516ce
2014-01-12 00:00:00

Sample Entry: Astronomy is the scientific study of stars, planets, comets, galaxies, and other phenomena that occur outside Earth's atmosphere (e.g. cosmic radiation). Astronomy deals with the evolution, physics, chemical makeup, meteorology, and motion of celestial objects, and also the formation of the universe. The word Astronomy comes from the Greek words astron (meaning "star") and nomos (meaning "law"). Astronomy is one of the oldest sciences. Since the dawn of man, people always...

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