News tagged with directional antenna

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The controversy over interstellar messaging

Should we beam messages into deep space, announcing our presence to any extraterrestrial civilizations that might be out there? Or, should we just listen? Since the beginnings of the modern Search for Extraterrestrial ...

Feb 20, 2015
4.6 / 5 (19) 16

Rediscovering spontaneous light emission

Berkeley Lab researchers have developed a nano-sized optical antenna that can greatly enhance the spontaneous emission of light from atoms, molecules and semiconductor quantum dots. This advance opens the ...

Feb 03, 2015
4.8 / 5 (15) 1

Huge asteroid 2004 BL86 to fly by Earth

Asteroid 2004 BL86, slated to swoosh by Earth on Jan. 26, is the largest known body to pass near our home planet until 2027. But there's no need to panic as the astronomers estimate that the 500 meters-wide ...

Jan 26, 2015
5 / 5 (6) 1

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