News tagged with radio signal

Helicopter drones on Mars

NASA's Jet Propulsion Laboratory recently announced that it is developing a small drone helicopter to scout the way for future Mars rovers. Why would Mars rovers need such a robotic guide? The answer is that driving on Mars ...

dateMar 18, 2015 in Space Exploration
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No signals from newest Kepler planet

A newly discovered planet has been observed with the Allen Telescope Array in a search for radio signals that would betray technically sophisticated inhabitants, but no transmissions have been detected.

dateJan 07, 2015 in Astronomy
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Mobile radio passive radar makes harbors safer

Many coastal areas and harbors go almost unprotected against acts of terror. Soon a new sensor system relying on signal echoes from cell towers can quickly detect even the smallest of attack boats. This mobile radio passive ...

dateDec 01, 2014 in Engineering
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Talking to aliens

What do you say to a space alien? This question might not be the foremost puzzle in your life, but it was the subject of a lively two-day conference at California's SETI Institute this week.

dateNov 17, 2014 in Space Exploration
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