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The Milky Way is hidden from one third of humanity

Nearly 4 out of every 5 people on Earth - including 99 percent of those living in the United States and Europe - now live under light-polluted skies, according to scientists who have created a state-of-the-art atlas of the problem across the globe.

SpaceX has second successful landing at sea

An unmanned SpaceX Falcon 9 rocket on Friday blasted off from Florida to put a communications satellite into orbit, with the launch vehicle’s main-stage booster then making a swift return landing on an ocean platform, a live webcast showed.