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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; A Black Hole Is There
8 August 2012 2:45 pm
Researchers today released the largest three-dimensional map of black holes and massive galaxies yet produced, which pinpoints the locations and distances to more than 1 million galaxies. Most of those galaxies, each of which contains more than 100 billion stars, lie between 1 billion and 6 billion light-years from Earth. Mapping them will enable scientists to retrace the history of the universe for the last 6 billion years, the team says, thereby allowing astronomers to make better estimates for how much of it is composed of the "dark matter" that can’t be directly seen, and "dark energy," the mysterious force that’s driving the expansion of the universe. The survey, which recently completed its second year, has so far covered about 8% of the sky. By the time the 6-year project is completed, researchers will have mapped all massive galaxies outside of the dust-clogged plane of our Milky Way galaxy that are visible from the Northern Hemisphere—altogether, about one-fourth of the sky that’s visible from Earth.
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