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Latest Physical cosmology Stories

Hubble And VLT Data Reveals Details Of An Early Galaxy
2013-07-03 04:39:20

Lee Rannals for redOrbit.com - Your Universe Online Researchers have published details, including size, mass and content of elements, of an early galaxy in the scientific journal Monthly Notices of the Royal Astronomical Society. Galaxies from the early universe were much different than those found today. The team's new detailed study using the European Space Observatory's Very Large Telescope (VLT) and NASA's Hubble Space Telescope allows scientists to peer into one of the ancient...

Dark Energy Survey Will Look For Supernovae
2013-07-01 18:32:12

John P. Mills, Ph.D. for redOrbit.com - Your Universe Online The greatest cosmological puzzle of the 21st century continues to be to measure, characterize and understand the source of dark energy, the apparent force that is driving the accelerating expansion of the Universe. One of the problems is that in order to make accurate measurements of the expansion rate, astronomers must measure the motions of distant galaxies, some near the very edge of the known Universe. At such great...

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...

Project Maps Detailed Motions Of Universe
2013-06-14 11:35:29

Watch the video "Cosmography of the Local Universe" John P. Millis, PhD for redOrbit.com — Your Universe Online Visualizing the Universe is quite difficult. For one, the cosmos is enormous, far beyond the dimensions the human mind can comprehend. However, there is also the technical problem that we usually see images of the Universe as a two-dimensional image or map. Without the benefit of depth, we can´t truly appreciate the scale, orientation, and distribution of matter in...

2013-06-13 23:00:21

“Bright Hole Cosmos” will be featured in the upcoming National Education Book Exhibit. QUEBEC (PRWEB) June 14, 2013 In 1929, Edwin Hubble discovered that the universe is in fact expanding at enormous speed. This revolutionary discovery further supported the Big Bang theory which would, to this day, be the prevailing paradigm in cosmology. Author Andre Trepanier is not totally satisfied with this cosmological model and in his quest for answers he discovered a defendable...

Data Supports Cold Model Dark Matter
2013-06-13 15:54:45

John P. Millis, PhD for redOrbit.com — Your Universe Online Scientists continue the search to identify the nature of dark matter that seems to pervade the Universe. Since by its very nature it does not interact well — or perhaps at all — with electromagnetic radiation, direct detection of this mysterious form of matter has proven elusive. Despite this obstacle, astronomers have become convinced of its existence because of how it can be ℠seen´ to interact...

How Does Hydrogen Drive Star Formation In Galaxies
2013-06-13 05:00:58

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online A major field of study in astronomy seeks to understand how galaxies form and evolve. One advantage that we possess is that as we study the light from the most distant galaxies, we are effectively looking back in time, seeing the oldest galaxies in the Universe when they were still young. But there is a problem: the farther away the galaxies are, the more difficult they are to study. This is the issue faced by...

Euclid Dark Matter Mission Now In Development
2013-06-11 13:13:58

Lee Rannals for redOrbit.com — Your Universe Online The European Space Agency's (ESA's) Euclid module under development in France will be helping to explore dark energy and dark matter in the universe. Euclid will be launching in 2020 to help scientists better understand the evolution of the Universe since the Big Bang and its present accelerating expansion. Dark matter is invisible to normal telescopes, making it hard to study. However, the elusive subject plays a vital role in...

Dark Matter Not Actually Dark
2013-06-11 09:51:15

John P. Millis, PhD for redOrbit.com — Your Universe Online For more than 80 years physicists and astronomers have been searching for an elusive form of matter that appears to be responsible for most of the mass in the Universe. While the presence of this dark matter can be measured by the gravitational influence of the particles, directly “seeing” the mass has proven troublesome. The working theory for decades has been that the candidate particle should be...

Astronomers Size Up The Smallest Galaxy In The Universe
2013-06-10 11:54:04

Lee Rannals for redOrbit.com - Your Universe Online University of California, Irvine scientists reported on Monday that they have measured the least massive galaxy in the known universe. The researchers wrote in The Astrophysical Journal that the tiny dwarf galaxy, Segue 2, only holds a mere 1,000 stars within its realm. Their findings offer clues about how iron, carbon and other elements help form human life. “Finding a galaxy as tiny as Segue 2 is like discovering an elephant...


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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