[caption id="attachment_12471" align="alignleft" width="300" caption="City skies (right) are often significantly dimmed by sky glow. Credit: Jeremy Stanley"] [/caption]Step out into the darkness a few hours after sunset. What do you see overhead? If you live in a relatively unpopulated part of the world, you might see the broad stripe of the Milky Way splashed against a backdrop of black sky punctuated by countless stars. If, on the other hand, you live in a teeming metropolis, what's visible might have much more to do with where you find yourself on the planet than where we find ourselves in the galaxy. [More]














Source: Citizen Scientists Track Light Pollution as Humanity Loses Touch with the Night Sky