We're often told to limit our "screen time," thanks in part to the harsh blue light that screens can emit. Plants can detect blue light too, but instead of causing sleepless nights for our green friends, it could help make ...
Plants & Animals
Dec 20, 2022
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61
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
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
Natural wonders like tumbling waterfalls, jutting rock faces and banks of wildflowers have long drawn visitors to America's national parks and inspired efforts to protect their beauty.
Ecology
Sep 4, 2015
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48
Since time immemorial, Indigenous peoples worldwide have observed, tracked and memorized all the visible objects in the night sky.
Astronomy
Apr 25, 2022
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8
Did you know the Northern lights or Aurora Borealis are created when the mythical Finnish "firefox" runs so quickly across the snow that its tail causes sparks to fly into the night sky?
Planetary Sciences
Sep 21, 2023
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1
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
Most animals sync their body clocks to the daily rhythm of the sun, but what happens during the polar winter when the sun never rises above the horizon? According to a study by Jonathan Cohen at the University of Delaware ...
Plants & Animals
Oct 19, 2021
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120
In today's increasingly urbanized world, the lights in many places are always on, and according to a report published online on September 16 in of Current Biology, a Cell Press publication, that's having a real impact on ...
Ecology
Sep 16, 2010
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2
An initially promising U.S. forecast for the northern lights has gone bust.
Environment
Dec 10, 2020
0
16
