No earlier theory had envisioned that the responses would be so large! Scientists "poked" three crystals with pulses of light. Unexpectedly, the crystals exhibited the largest nonlinear optical response of any known crystal. ...
Condensed Matter
Mar 21, 2018
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14
Something wonderful happened about 13.8 billion years ago. Everything in the universe was created in an instant as an infinitesimally small point of energy: the Big Bang. We know that this event happened, as the universe ...
Astronomy
Jan 25, 2018
3
98
We are bathed in starlight. During the day we see the Sun, light reflected off the surface of the Earth and blue sunlight scattered by the air. At night we see the stars, as well as sunlight reflected off the Moon and the ...
Astronomy
Jan 22, 2018
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37
Parts of an unmanned Russian cargo spaceship burned across the night sky of the Arabian Peninsula, drawing gasps from Dubai to Riyadh before breaking up in the Earth's atmosphere and scattering in the Indian Ocean.
Space Exploration
Oct 17, 2017
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4
Tourists heading to central Idaho will be in the dark if local officials get their way.
Space Exploration
Sep 15, 2017
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12
Will we soon see a new bright "star" visiting our evening skies? The crowd-funded Mayak CubeSat was launched along with 72 other satellites aboard a Russian Soyuz Rocket on July 14, 2017.
Space Exploration
Jul 25, 2017
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5
For the 11th year running, cities worldwide will turn their lights off Saturday to mark Earth Hour in a global call to action on climate change.
Environment
Mar 24, 2017
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14
Astronomers at Nottingham Trent University have developed a light, low cost system, deployable on a drone, that could help everyone monitor and control light pollution. The team, led by undergraduate student Ashley Fuller, ...
Space Exploration
Jun 28, 2016
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14
Arizona has long been a haven for astronomers who take advantage of its mountain peaks and vast stretches of dark, desert sky to gaze at stars and planets. The state is also home to a thriving billboard industry whose signs ...
Astronomy
Mar 2, 2016
0
13
Scientists say a meteor was the cause of a bright flash of light reported by people across Scotland and northern England.
Space Exploration
Mar 1, 2016
0
10
