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Summer months usually bring about the most stargazing events in the National Park System, but winter is pretty good, too, in part because of the clearer atmospheric conditions. Upcoming events take place at Voyageurs National Park in Minnesota, and Death Valley National Park in California and Nevada.
A November 2017 study shows Earth's surface increasingly illuminated by brighter artificial night light. HowStuffWorks looks at the consequences.
Light pollution 'prevents a third of people from seeing Milky Way' A map with bright areas showing where the glow from artificial lighting blots out the stars and constellations. (PA) A third of people on Earth are no longer able to look up at the night sky and experience the full glory of the Milky Way, scientists claim. Experts have produced a new atlas of light pollution which shows that across many regions of the world, the Milky Way - the brilliant river of stars that has inspired philosophers, scientists, and poets throughout history - is hidden behind a blanket of luminous fog.