Imagine how clearly distant stars would spring into view if we could turn out all our lights http://on.natgeo.com/2za8EWU pic.twitter.com/urh66JpIH1

Imagine how clearly distant stars would spring into view if we could turn out all our lights http://on.natgeo.com/2za8EWU  http://pic.twitter.com/urh66JpIH1

https://twitter.com/NatGeoTravel/status/923578238126899200