Latest Physical cosmology Stories
WASHINGTON, Jan. 11, 2012 /PRNewswire-USNewswire/ -- NASA's Hubble Space Telescope has looked deep into the distant universe and detected the feeble glow of a star that exploded more than 9 billion years ago. The sighting is the first finding of an ambitious survey that will help astronomers place better constraints on the nature of dark energy, the mysterious repulsive force that is causing the universe to fly apart ever faster. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO)...
NASA's Hubble Space Telescope has looked deep into the distant universe and detected the feeble glow of a star that exploded more than 9 billion years ago. The sighting is the first finding of an ambitious survey that will help astronomers place better constraints on the nature of dark energy, the mysterious repulsive force that is causing the universe to fly apart ever faster. "For decades, astronomers have harnessed the power of Hubble to unravel the mysteries of the universe," said John...
[ Watch Video 1 ] | [ Watch Video 2 ] An extremely hot, massive young galaxy cluster — the largest ever seen in the distant Universe — has been studied by an international team using ESO’s Very Large Telescope (VLT) in the Atacama Desert in Chile along with NASA's Chandra X-ray Observatory and the Atacama Cosmology Telescope. The new results are being announced on 10 January 2012 at the 219th meeting of the American Astronomical Society in Austin, Texas. The newly discovered...
WASHINGTON, Jan. 10, 2012 /PRNewswire-USNewswire/ -- An exceptional galaxy cluster, the largest seen in the distant universe, has been found using NASA's Chandra X-ray Observatory and the National Science Foundation-funded Atacama Cosmology Telescope (ACT) in Chile. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) Officially known as ACT-CL J0102-4915, the galaxy cluster has been nicknamed "El Gordo" ("the big one" or "the fat one" in Spanish) by the researchers who...
Astronomers from the University of British Columbia and University of Edinburgh have mapped dark matter on the largest scale ever observed. The findings reveal a Universe comprised of an intricate cosmic web of dark matter and galaxies that span over a billion light years across. Researchers analyzed images of about 10 million galaxies in four different regions of the sky, and studied the distortion of the light emitted from these galaxies. "By analyzing light from the distant...
SAN FRANCISCO, Dec. 30, 2011 /PRNewswire-USNewswire/ -- Universe Day is similar to Earth Day in that individuals and organizations all over the planet are encouraged to design their own events to forward the Universe Day message. But Universe Day picks up where Earth Day leaves off and attempts to solve our planet's problems with a new universe evolutionary worldview. The Universe Day message is derived in part from the wisdom of Albert Einstein, who said, "We cannot solve our...
A team of astronomers lead by Masami Ouchi of the University of Tokyo has found the most vigorous star-forming galaxy yet seen, from a period of time in the early stages of the creation of the universe known as ‘cosmic dawn’. The 750-million-year-old galaxy, known as GN-108036 among was forming stars equivalent to about a hundred Suns per year, when most of the universe was still cold and dark, reports Rob Waugh for Mail Online. The galaxy, 12.9 billion light-years away, was...
SAN FRANCISCO, Dec. 16, 2011 /PRNewswire/ -- Universe Day is an annual event that starts each December 31st at noon and runs until noon on January 1st. Universe Day seeks to pick up where Earth Day leaves off and to effectively solve our planet's evolutionary problems from a universe evolutionary perspective. "Universe Day is similar to Earth Day in that individuals and organizations all over the planet are encouraged to self-organize their own events to forward the Universe Day...
Even the most powerful high-tech telescopes are barely able to record remote low-mass and thus faint stars. Together with researchers from Poland and Chile, an astrophysicist from the University of Zurich has now detected a low-mass star in globular cluster M22 for the first time through microlensing. The result indicates that the overall mass of globular clusters might well be explained without enigmatic dark matter. Until now, it was merely assumed that low-mass and therefore extremely...
Largest Cosmological Simulation To-Date Explains How Supermassive Black Holes Came Into Existence Shortly After the Big Bang Researchers at Carnegie Mellon University’s Bruce and Astrid McWilliams Center for Cosmology have discovered what caused the rapid growth of early supermassive black holes – a steady diet of cold, fast food. Computer simulations, completed using supercomputers at the National Institute for Computational Sciences and the Pittsburgh Supercomputing Center and...
Latest Physical cosmology Reference Libraries
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...
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...
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).
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...
Yakov Borisovich Zel'dovich (March 8, 1914 "“ December 2, 1987) was a productive Soviet physicist. He was instrumental in the advancement of Soviet nuclear and thermonuclear weapons, and also was an invaluable assistance in the fields of adsorption and catalysis, shock waves, nuclear physics, particle physics, astrophysics, physical cosmology, and general relativity. In 1914, he was born into a Jewish family in Minsk, now called Belarus. Four months after his birth, he and his family...
