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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: Billion-Pixel Array Will Map the Milky Way
7 July 2011 1:21 pm
Technicians have assembled the largest digital camera ever built for a space mission. Completed last month, the so-called billion-pixel array (shown during assembly) is made up of 106 charge-coupled imaging devices, each slightly smaller than a credit card and thinner than a human hair. Part of the European Space Agency's Gaia probe, the camera is due to ride into space in 2013, the agency reported yesterday. During the 5-year mission, Gaia's instruments will repeatedly measure the position, color, intensity, and spectra of stars and other objects as dim as magnitude 20, about 400,000 times fainter than can be seen with the naked eye. The resulting 3D star map will include more than 1 billion stars in our galaxy and in nearby star clusters and should provide unprecedented insights into the composition, formation, and evolution of the Milky Way. Besides discovering thousands of distant, dim objects such as brown dwarfs, Gaia's sensors will likely detect hundreds of thousands of comets, asteroids, and other minor bodies in our solar system, the researchers say.
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