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The Journey of Light, From the Stars to Your Eyes
The Milky Way from Earth. Image Credit: Kerry-Ann Lecky Hepburn (Weather and Sky Photography)
This week, millions of people will turn their eyes to the skies in anticipation of the 2015 Perseid meteor shower. But what happens on less eventful nights, when we find ourselves gazing upward simply to admire the deep, dark, star-spangled sky? Far away from the glow of civilization, we humans can survey thousands of tiny pinpricks of light. But how? Where does that light come from? How does it make its way to us? And how do our brains sort all that incoming energy into such a profoundly breathtaking sight?
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Read the rest of The Journey of Light, From the Stars to Your Eyes (625 words)
© Vanessa Janek for Universe Today, 2015. | Permalink | No comment |
Post tags: beta decay, biology, fusion, light, photon, shine, starlight, stars, weak force
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Source: http://www.universetoday.com/121795/the-journey-of-light-from-the-stars-to-your-eyes/
