Latest Big Bang Stories
A cerebral volume that basically presents the analyses of the human scientific knowledge and its significance and contribution to a better understanding of the creation of the universe and life
An astronomer wrote in the journal Physical Review Letters about a new mechanism for the magnetization of the early universe.
Astronomers have discovered seven primitive galaxies that formed more than 13 billion years ago, during the Universe's infancy.
As grand and colorful as it is, our solar system is a fleck in the grander cosmos. Our Milky Way galaxy has hundreds of billions of solar systems, yet it is only just a drop in the sea of galaxies.
The universe has had traces of heavy elements such as carbon and oxygen as far back into time as astronomers have been able to see. Elements such as these were originally churned from the explosion of massive stars.
Penn State University scientists using techniques from modern physics have developed a new understanding of the earliest eras in the history of the universe.
Astronomers use the distribution of clusters of galaxies to understand dark matter, and a research team has just used this tool to help understand the expansion history of our universe.
The KMOS (K-Band Multi Object Spectrometer) uses near infrared technology to provide astronomers with a far quicker solution to uncovering details about galaxies and their properties.
The winners of a contest that encourages scientists and students across the globe to explore fundamental, big questions in astronomy and cosmology will present their proposals and essays in a joint conference Oct. 12-13 at the Franklin Institute in Philadelphia.
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...
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...
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...
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...
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...
- A person who stands up for something, as contrasted to a bystander who remains inactive.
- One of the upright handlebars on a traditional Inuit sled.