17/01/2012

Countries consider time out on the 'leap second'

It's high noon for the humble leap second. After ten years of talks, governments are headed for a showdown vote this week on an issue that pits technological precision against nature's whims.

Galileo to image objects in geosynchronous orbit faster

Military satellites are critical sources of communications and data for today's operations environments. Through DARPA's Phoenix program, usable antennas or solar arrays from retired satellites in geosynchronous orbit (GEO ...

New microtweezers may build tiny 'MEMS' structures

Researchers have created new "microtweezers" capable of manipulating objects to build tiny structures, print coatings to make advanced sensors, and grab and position live stem cell spheres for research.

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