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2e8346401d254625b34acbe6c67d40491
2010-03-17 08:40:00

Giant filaments of cold dust stretching through our Galaxy are revealed in a new image from ESA's Planck satellite. Analyzing these structures could help to determine the forces that shape our Galaxy and trigger star formation. Planck is principally designed to study the biggest mysteries of cosmology. How did the Universe form? How did the galaxies form? This new image extends the range of its investigations into the cold dust structures of our own Galaxy. The image shows the...

c34bd09c006aed0ff20abfff068fa7881
2010-03-12 13:10:00

A team led by Princeton University scientists has tested Albert Einstein's theory of general relativity to see if it holds true at cosmic scales. And, after two years of analyzing astronomical data, the scientists have concluded that Einstein's theory, which describes the interplay between gravity, space and time, works as well in vast distances as in more local regions of space. The scientists' analysis of more than 70,000 galaxies demonstrates that the universe -- at least up to a distance...

52c4ec7f88713f999bc8c3cf852b8ad9
2010-03-11 07:40:00

Sloan Digital Survey data provide test that rules out alternative theories of gravity An analysis of more than 70,000 galaxies by University of California, Berkeley, University of Zurich and Princeton University physicists demonstrates that the universe "“ at least up to a distance of 3.5 billion light years from Earth "“ plays by the rules set out 95 years ago by Albert Einstein in his General Theory of Relativity. By calculating the clustering of these galaxies, which stretch...

d365a7dcf79d98476f1acd6ef7148dd1
2010-03-04 14:50:00

A worldwide team of researchers, including 10 from Texas A&M University, have for the first time created a particle that is believed to have been in existence immediately after the creation of the universe "“ the so-called "Big Bang" "“ and it could lead to new questions and answers about some of the basic laws of physics because in essence, it creates a new form of matter. Researchers Carl Gagliardi, Saskia Mioduszewski, Robert Tribble, Matthew Cervantes, Rory Clarke, Martin...

6117376a5e5fc132a65cc969a11fe35b1
2010-02-19 10:03:40

Even the biggest Star Trek fan would probably have trouble understanding the technical details of the research done by Particle Astrophysics Professor Wolfgang Rau. Professor Rau is the only Canadian researcher among the group of 60 scientists involved in the Cryogenic Dark Matter Search experiment (CDMS) whose latest findings are published in the latest edition of Science magazine. Professor Rau says the project is among the top two or three most important experiments on this subject in the...

2010-02-11 11:03:00

WASHINGTON, Feb. 11 /PRNewswire-USNewswire/ -- On February 16, 2010, from 8:30a -- 11:00a in the Zenger Room of the National Press Club, creation scientist Robert Gentry brings to public attention the scientific community's censorship of his overthrow of big bang cosmology by disproof of its central assumption, as reported in his 2/16/10 American Physical Society poster at the DC Marriott Wardman Park Hotel, http://meetings.aps.org/Meeting/APR10/Event/124797. The NPC event enlarges on...

82254273e52c7c95420fc7866639524e1
2010-01-20 12:20:00

Observations of faint and distant galaxy groups made with the European Space Agency's XMM-Newton observatory have been used to probe the evolution of dark matter. The results of the study are reported in the January 20 issue of The Astrophysical Journal. Dark matter is a mysterious, invisible constituent of the Universe which only reveals itself through its gravitational influence. Understanding its nature is one of the key open questions in modern cosmology. In one of the approaches used to...

868849ad034d367cd193a6de70d7fdf21
2010-01-20 09:27:32

Weak gravitational lensing is a uniquely promising way to learn how much dark matter there is in the Universe and how its distribution has evolved since the distant past. New work by a team led by a cosmologist from the U.S. Department of Energy's Lawrence Berkeley National Laboratory has made major progress in extending the use of gravitational lensing to the study of much older and smaller structures than was previously possible. Until recently, weak lensing had been limited to calculating...

3469e531c2a1438de4f763d3991b8b651
2010-01-14 11:10:00

For more than two decades, the cold dark matter theory has been used by cosmologists to explain how the smooth universe born in the big bang more than 13 billion years ago evolved into the filamentary, galaxy-rich cosmic web that we see today. There's been just one problem: the theory suggested most galaxies should have far more stars and dark matter at their cores than they actually do. The problem is most pronounced for dwarf galaxies, the most common galaxies in our own celestial...

7d4391c02b7088ca69e1af2b5815790c1
2010-01-06 08:44:15

Scientists have made many discoveries about the origins of our 13 billion-year-old universe. But many scientific mysteries remain. What exactly happened during the Big Bang, when rapidly evolving physical processes set the stage for gases to form stars, planets and galaxies? Now astrophysicists using supercomputers to simulate the Big Bang have a new mathematical tool to unravel those mysteries, says Daniel R. Reynolds, assistant professor of mathematics at SMU. Reynolds collaborated with...


Latest Big Bang 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...

8_2c71772f2c3a31994d5208d4518632495
2004-10-19 04:45:44

Large-Scale Structure of the Cosmos -- Stars are organised into galaxies which in turn appear to form clusters and superclusters, separated by voids. Prior to 1989 it was commonly assumed that the superclusters were the largest structures in existence, and that they were distributed more-or-less uniformly throughout the universe in every direction. However, in 1989, Margaret Geller and John Huchra discovered the "Great Wall", a sheet of galaxies more than 500 million light years long...

8_67ff07d77c86523b0eab2955b9ab43e02
2004-10-19 04:45:44

Cosmology -- area of science that aims at a comprehensive theory of the structure and evolution of the entire physical universe. Modern Cosmological Theories Present models of the universe hold two fundamental premises: the cosmological principle and the dominant role of gravitation. Derived by Hubble, the cosmological principle holds that if a large enough sample of galaxies is considered, the universe looks the same from all positions and in all directions in space. The second point...

6_c01dfaf162273609e19b80ea97407cf52
2004-10-19 04:45:42

Redshift -- Redshift is the phenomenon that the frequency of light when observed, under certain circumstances, can be lower than the frequency of light when it was emitted at the source. This usually occurs when the source moves away from the observer, as in the Doppler effect. More specifically, the term redshift is used for the observation that the spectrum of light emitted by distant galaxies is shifted to lower frequencies (towards the red end of the spectrum, hence the name) when...

6_0ba47eab12382e6a4e2cc12b1c7ddf782
2004-10-19 04:45:42

Quasar -- A quasar (from quasi-stellar radio source) is an astronomical object that looks like a star in optical telescopes (i.e. it is a point source), but has a very high redshift. The general consensus is that this high redshift is cosmological, the result of Hubble's law and that their redshift indicates that they are typically very distant from Earth; we observe them as they were several billions of years ago. Since we can see them despite their distance, they must emit more...

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Word of the Day
bellycheer
  • Good cheer; viands.
  • To revel; to feast.
The word 'bellycheer' may come from 'belle cheer', "good cheer".
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