If you've ever compared the night sky from your backyard to the night sky from a campsite, you already know: it's not the same sky. It's the same universe, but you're seeing a fraction of it.

Streetlights, billboards, and buildings scatter light upward into the atmosphere, where it bounces around and washes out anything dim — including most stars and all but the brightest meteors. Astronomers call this light pollution, and it's the reason city dwellers can usually only pick out a few dozen stars while a dark-sky site reveals thousands.

The fix is refreshingly simple: distance. Twenty to thirty minutes outside a mid-sized city is often enough to get the Milky Way back. No equipment required — just a working pair of eyes and the patience to let them adjust.

Next clear night, it might be worth the drive.

#science#light-pollution#astronomy