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Laser beams with a 'twist'

(University of the Witwatersrand) Using geometric phase inside lasers for the first time, researchers find a way to change the orbital angular momentum of laser beams.

dateMar 15, 2016 in Optics & Photonics
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Image: First contact with Ariane 5

Ariane 5 flight VA229 lifted off yesterday morning at 05:20 GMT (02:20 local time, 06:20 CET) from Europe's Spaceport in Kourou, French Guiana, to deliver a telecom satellite into geostationary orbit.

dateMar 11, 2016 in Space Exploration
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Jupiter returns as king of the night sky

Since January, there have not been any planets to see in the evening sky. Instead, all five bright planets have been visible in the early hours before sunrise. But now Jupiter, the king of the planets, is making a return ...

dateMar 08, 2016 in Space Exploration
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Image: Eclipse season begins for NASA's SDO

The 2016 spring eclipse season of NASA's Solar Dynamics Observatory began Feb. 19, 2016. These seasons – a time when Earth blocks SDO's view of the sun for a period of time each day – last around three weeks and happen ...

dateMar 01, 2016 in Space Exploration
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