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17 April 2014 12:48 pm ,
Vol. 344 ,
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...
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,...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
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ScienceShot: Galaxy Is a Rare Gem
21 March 2012 12:04 pm
The vast majority of galaxies are either flattened, disklike spirals like our own Milky Way, ellipsoidal rugby ball-shaped blobs, or irregular clumps of stars. Now, an international team of astronomers has found a rare exception: a galaxy shaped like a rectangle. The boxy agglomeration (false color image above), dubbed LEDA 074886, is one of about 250 galaxies in the cluster surrounding the giant galaxy NGC 1407, which lies about 70 million light-years from Earth in the constellation Eridanus. A disk of bluish, relatively young stars at the center of LEDA 074886 hints at one possible reason the galaxy has an "emerald-cut" shape: It could be the remnant of a collision between two smaller galaxies in which preexisting stars were strewn into a boxy halo and gas clouds gravitated toward the center of the mass and coalesced to form new stars, the researchers will report in a forthcoming issue of The Astrophysical Journal. They also note that after our Milky Way collides with the nearby Andromeda galaxy, perhaps 3 billion years from now, our descendants might live in a boxy galaxy, too.
See more ScienceShots.