Chasing Cosmic Light In Dark Sky Parks And Reserves

International Year of Light Blog

Much of our world is now awash in artificial light at night, the result of more than a century of electrification. This light has enabled all manner of nighttime human activity from transportation to commerce, but it now presents a significant challenge to industrialized nations and emerging economies. Artificial light at night has known negative effects on humans and animals, and light wasted from overabundant and inefficient sources is a problem in terms of both energy security and climate change.

During the International Year of Light 2015 we are reminded by the “Cosmic Light” theme that a natural form of light has fundamentally shaped the human experience throughout the history of our species: the light of distant stars and galaxies. Starry nights inspired great works of art, literature and music, as well as centuries of scientific discovery. Every fascinating fact we know about astronomy was ultimately found as a result…

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