Latest Sloan Digital Sky Survey Stories

Image 1 - Important Clue Uncovered For Origins Of A Type Of Supernovae Explosion
2012-03-04 06:11:31

Pitt team used Sloan Digital Sky Survey to determine that the merger of double white dwarfs is a plausible explanation for Type Ia supernovae The origin of an important type of exploding stars–Type Ia supernovae–have been discovered, thanks to a research team at the University of Pittsburgh. Studying supernovae of this type helps researchers measure galaxy distances and can lead to important astronomical discoveries. A paper detailing this research has been accepted for...

What Color Is The Milky Way?
2012-01-12 11:04:45

Astronomers from University of Pittsburgh seeking to find the true color of our very own Milky Way have revealed that it is so white that it would resemble a fresh blanket of snow to the naked eye. The astronomers said the color of the galaxy is important because it reveals age, ranging from young blue galaxies with new stars still being born, to older red ones that rarely form new stars. It seems we are right in the middle of this range. The Pittsburgh University team wanted to find...

Galactic Brightness Helps Build Precision Model Of The Universe
2012-01-12 04:39:50

Berkeley Lab scientists and their Sloan Digital Sky Survey colleagues use galactic brightness to build a precision model of the cosmos Since 2000, the three Sloan Digital Sky Surveys (SDSS I, II, III) have surveyed well over a quarter of the night sky and produced the biggest color map of the universe in three dimensions ever. Now scientists at the U.S. Department of Energy´s Lawrence Berkeley National Laboratory (Berkeley Lab) and their SDSS colleagues, working with DOE´s...

Hungry Milky Way Devours Galaxies
2011-11-30 04:28:48

The Milky Way galaxy continues to devour its small neighboring dwarf galaxies and the evidence is spread out across the sky. A team of astronomers led by Sergey Koposov and Vasily Belokurov of Cambridge University recently discovered two streams of stars in the Southern Galactic hemisphere that were torn off the Sagittarius dwarf galaxy. This discovery came from analyzing data from the latest Sloan Digital Sky Survey (SDSS-III) and was announced in a paper released today that connects...

2011-10-11 09:28:03

Astrophysicists have found evidence of black holes destroying stars, a long-sought phenomenon that provides a new window into general relativity. The research, reported in the latest issue of the Astrophysical Journal, also opens up a method to search for the possible existence of a large population of presently undetectable "intermediate mass" black holes which are hypothesized to be precursors to the super-massive black holes at the centers of most large galaxies. The study was carried...

2011-05-23 13:30:00

Stanford University astrophysicist Risa Wechsler andother researchers have found that only four percent of galaxies are similar to the Milky Way galaxy. The team compared the Milky Way to similar galaxies in terms of luminosity and distance to other bright galaxies.  They found that galaxies with two satellites that are as bright and close by as the Milk Way's two closest satellites, the Large and Small Magellanic Clouds, are hard to come by. According to a press release by the...

2011-05-03 06:30:00

Berkeley Lab-led BOSS proves it can do the job with quasars The biggest 3-D map of the distant universe ever made, using light from 14,000 quasars "“ supermassive black holes at the centers of galaxies billions of light years away "“ has been constructed by scientists with the third Sloan Digital Sky Survey (SDSS-III). The map is the first major result from the Baryon Oscillation Spectroscopic Survey (BOSS), SDSS-III's largest survey, whose principal investigator is David Schlegel...

2011-01-12 13:44:18

Astronomers at the California Institute of Technology (Caltech), University of Illinois at Urbana-Champaign (UIUC), and University of Hawaii (UH) have discovered 16 close-knit pairs of supermassive black holes in merging galaxies. The discovery, based on observations done at the W. M. Keck Observatory on Hawaii's Mauna Kea, is being presented in Seattle on January 12 at the meeting of the American Astronomical Society, and has been submitted for publication in the Astrophysical Journal. These...

2011-01-12 08:45:00

Astronomers have released the largest digital, color image of the universe ever recorded--a mosaic created from millions of 2.8 megapixel images recorded over the past decade. The image, which was unveiled during the 217th annual meeting of the American Astronomical Society (AAS) in Seattle, Washington on Tuesday, was captured and assembled by researchers with the Sloan Digital Sky Survey (SDSS). SDSS-III, as it has been dubbed, is a full color representation of the night sky that has a...

2010-11-09 06:55:00

With the help of the army of volunteers working on the Galaxy Zoo 2 "Ëœcitizen science' project, an international team of scientists have discovered that the bars found in many spiral galaxies could be helping to kill them off. The researchers present their results in the journal Monthly Notices of the Royal Astronomical Society. The overwhelming majority of stars in the universe are found in galaxies like our own Milky Way. These vast stellar assemblies contain anything between a...

Word of the Day
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.