News tagged with radio signals

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Galaxy harbors many star-snacking black holes

(Phys.org) -- Astronomers have found evidence of hundreds of black holes in a galaxy 250 million light years away. The discovery, made with a worldwide network of radio telescopes, gives scientists a new way ...

Jul 02, 2012
4.4 / 5 (9) 4 | with audio podcast

SETI on the SKA

Can the Square Kilometer Array - a network of thousands of radio antennas to be based in South Africa and Australia -- be used to hunt for extraterrestrial signals?

Jun 26, 2012
5 / 5 (3) 4

Seeing inside the nose of an aircraft

Radio signals reach pilots on board an aircraft through the "radar dome", the rounded nose of the aircraft. But if errors occur during the production of this "nose", - tiny foreign particles, drops of water ...

Apr 26, 2012
not rated yet 1

Finding ET may require giant robotic leap

(Phys.org) -- Autonomous, self-replicating robots -- exobots -- are the way to explore the universe, find and identify extraterrestrial life and perhaps clean up space debris in the process, according to a Penn State engineer, ...

Apr 18, 2012
3.9 / 5 (7) 6 | with audio podcast