Measuring All Light Since Big Bang May Provide Answers To Evolution Of Universe
Lee Rannals for redOrbit.com – Your Universe Online Researchers wrote in The Astrophysical Journal that they have made the best measurement of all the light in the universe since the Big Bang yet. Measuring the number and energy of each...
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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...
Del Monte Gives His Perspective of M-Theory and Its Importance to Science Minneapolis, Minnesota (PRWEB) May 09, 2013 Author, physicist and CEO, Louis A. Del Monte helps make important science theories easy to understand in his video series on YouTube. While many compelling science concepts covered in best-selling books and cable channels are intriguing, topics can be difficult to grasp. This week Del Monte explains salient popular science ideas about M-Theory in layman’s terms in his...
Brett Smith for redOrbit.com - Your Universe Online According to a study in the journal Nature, a team of international scientists has found the first ever direct evidence of pear-shaped atomic nuclei. Bizarre pear-shaped nuclei could be the key to understanding one of the great mysteries of the universe: the reason for the Big Bang’s creation of a massive imbalance between matter and antimatter. "If equal amounts of matter and antimatter were created at the Big Bang, everything...
Watch the video “Intergalactic Clouds Lurk Between Nearby Galaxies" John P. Millis, PhD for redOrbit.com – Your Universe Online As we gaze into space beyond the confines of our own Milky Way, we see a Universe filled with galaxies. But what scientists have come to realize is that the emptiness that spans between these giant pools of stars is not empty at all, but rather is filled with massive amounts of gas. In fact, these gas reservoirs can sometimes outweigh the galaxies...
[ Listen to the Podcast Series: How Stars Die And Black Holes Form ] John P. Millis, Ph.D. for redOrbit.com – Your Universe Online Scientists have debated the merits of the anthropic principle – the notion that the universe is somehow fine-tuned for life, or vice versa – and its variants for decades. The search to understand the nature and evolution of the universe is what plagues the fields of cosmology and astrophysics. Are we here because we happened upon a universe set up...
Alan McStravick for redOrbit.com - Your Universe Online In 2011, the Nobel Prize for Physics was awarded to a trio of researchers. Adam Riess, Saul Perlmutter and Brian Schmidt were able to determine that the speed and scope of the expansion of the universe is not so uniform as once believed. This simple discovery threw the whole prospect of dating and measuring time in galaxies far from our own. However, this week saw a multi-national collaboration come together to detail just how we...
April Flowers for redOrbit.com - Your Universe Online Of all the active galactic nuclei, blazars are the brightest and emit very high-energy gamma rays. A team led by physicists from the University of California, Santa Cruz (UCSC), has made new observations of the blazar known as PKS 1424+240 that reveal it is the most distant known source of very high-energy gamma rays. The emission spectrum of PKS 1424+240 now appears highly unusual in the light of new data. Data from the Hubble Space...
Brett Smith for redOrbit.com - Your Universe Online Although he probably never expected a career in physics would warrant it, Stephen Hawking received a ‘rock star’ reception to his speaking engagement at the California Institute of Technology (Caltech) in Pasadena, California on Tuesday. The 71-year-old scientist covered a wide range of topics during his speech, from the past and future of astrophysics to the existence of God. “It has been a glorious time to be alive and doing...
Lee Rannals for redOrbit.com – Your Universe Online Astronomers say they have discovered a star factory in a galaxy so distant that they see it when the Universe was only six percent of its current age of about 13.7 billion years old. The team wrote in the journal Nature that HFLS3 sits at about 12.8 billion light-years from Earth. They said the distant galaxy is producing about 3,000 Suns per year, which is more than 2,000 times that of our own Milky Way galaxy. "This is the most...
[ Watch the Video: The Sounds of the Big Bang in High Fidelity ] April Flowers for redOrbit.com - Your Universe Online "If the Universe started with a bang, and no one was alive yet to observe it, would it still make a sound?" It sounds like the start of a really cliché joke, but the answer, surprisingly, is yes. Scientists believe the expanding early Universe produced waves of sound that echoed through the dense plasma and hydrogen that filled it at the time. Obviously, these...
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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...
