News tagged with antennae

Chips that can steer light

If you want to create a moving light source, you have a few possibilities. One is to mount a light emitter in some kind of mechanical housing—the approach used in, say, theatrical spotlights, which stagehands swivel and ...

dateJan 09, 2013 in Optics & Photonics
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'Curiosity' can be positioned with eclipses

Observations from 'Curiosity' when Mar's moon Phobos crosses in front of the sun, like in September, help us to understand exactly where the rover is on the red planet. Researchers at the Complutense University of Madrid ...

dateDec 13, 2012 in Space Exploration
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