Astronomers have much to celebrate in the International Year of Light and Light-Based Technologies (IYL). Until the 1930s, every scrap of information about the universe came to us in the form of light.
Astronomy
Dec 10, 2015
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151
It sounds obvious. That's what night is. The sun has set and when you look up at the sky, it's black. Except where there's a star, of course. The stars are bright and shiny.
Astronomy
Dec 2, 2015
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46
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
The Andromeda galaxy is one of the most distant objects that we can see in the night sky with the naked eye. The light that we see now left there 2.5 million years ago. While this might seem a lot, in practice it is in our ...
Space Exploration
Aug 18, 2015
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79
For millennia, human beings have stared up at the night sky and stood in awe of the Milky Way. Today, stargazers and amateur astronomers continue in this tradition, knowing that what they are witnessing is in fact a collection ...
Astronomy
Jul 10, 2015
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103
Under the influence of artificial night lighting, four out of six studied songbird species started dawn and dusk singing earlier in the year. This was shown by scientists of the Max Planck Institute for Ornithology when they ...
Ecology
Mar 18, 2015
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73
At many locations around the world, the night sky shines hundreds of times brighter than it did before the introduction of artificial light. Berlin based researchers from the Leibniz-Institute of Freshwater Ecology and Inland ...
Earth Sciences
Feb 12, 2015
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21
The interaction of solar winds and Earth's atmosphere produces northern lights, or auroras, that dance across the night sky and mesmerize the casual observer. However, to scientists this interaction is more than a light display. ...
Space Exploration
Jan 28, 2015
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11
How many stars can you see at night? Right now people all over the world are being asked to go out and count them!
Space Exploration
Oct 23, 2014
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0
For Argonne physicist Clarence Chang, looking backward in time to the earliest ages of the universe is all in a day's work.
Astronomy
Jul 1, 2014
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