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When people email photos, they sometimes compress the images, removing redundant information and thus reducing the file size. Compression is generally thought of as something to do to data after it has been collected, but mathematicians have recently figured out a way to use similar principles to drastically reduce the amount of data that needs to be gathered in the first place

NASA’s plans for human spaceflight, the subject of much hand-wringing since the curtains closed on the agency’s space shuttle program in July, took a big step this week when the agency announced plans for a powerful new rocket to take astronauts into deep space. [More]

More than three million Americans are infected with hepatitis C, a blood-borne virus that's linked to 12,000 deaths every year.

Gamma rays are the most energetic type of light wave and can penetrate through lead and other thick containers. A powerful new source of gamma rays will allow officials to search for hidden reactor fuel/nuclear bomb material.