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17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
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ScienceShot: You Are Here
25 May 2011 5:56 pm
BOSTON—Astronomers have produced the most complete 3D map of the nearby universe to date. Using telescopes in both hemispheres, they measured distances to a whopping 45,000 galaxies out to a distance of 380 million light-years—for the astronomy buffs, a red shift of .07. Unlike the famous Sloan Digital Sky Survey, which mapped only part of the sky, the new 2MASS Redshift Survey covers 95% of surrounding space, skipping over only the region near the plane of our own galaxy, where the Milky Way's stars and dust block the view of remote objects. In the map, color codes for distance: purple dots are nearby galaxies; red dots are distant ones. Among other things, the new map will help astronomers to understand and explain the motion of the Milky Way, which is apparently being tugged by the gravity of neighboring groups and clusters of galaxies, says 2MASS team member Karen Masters of the University of Portsmouth in the United Kingdom, who presented the it here at the summer meeting of the American Astronomical Society.
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