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6 March 2014 1:04 pm ,
Vol. 343 ,
Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
Antiretroviral drugs can protect people from becoming infected by HIV. But so-called pre-exposure prophylaxis, or PrEP...
Two studies show that eating a diet low in protein and high in carbohydrates is linked to a longer, healthier life, and...
Considered an icon of conservation science, researchers at World Wildlife Fund (WWF) headquarters in Washington, D.C.,...
The new atlas, which shows the distribution of important trace metals and other substances, is the first product of...
Early in April, the first of a fleet of environmental monitoring satellites will lift off from Europe's spaceport in...
Since 2000, U.S. government health research agencies have spent almost $1 billion on an effort to churn out thousands...
- 6 March 2014 1:04 pm , Vol. 343 , #6175
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ScienceShot: Celestial Snow Angel
15 December 2011 9:00 am
Just in time for the holidays, the folks at the Space Telescope Science Institute in Baltimore, Maryland, give us a glimpse of a heavenly angel—not literally one of the seraphim, of course, but an astronomical delight nonetheless. The two-lobed star-forming region, dubbed Sharpless 2-106, is located in an isolated part of our Milky Way galaxy nearly 2000 light-years from Earth. The bluish "wings" are lobes of super-hot gas illuminated by a monster star—dozens of times the mass of our sun—forming in the center of the still-expanding nebula. A dark ring of dust and gas circling the star (dark bands, center), material that may one day coalesce into a planetary system, acts like a belt, cinching the nebula into an hourglass shape. Observations of the nebula at purely infrared wavelengths reveal more than 600 brown dwarfs, so-called "failed stars" that each gives off more heat than it receives but lacks enough mass to ignite and produce nuclear fusion on its own.
See more ScienceShots.