A truly dark night sky is getting harder and harder to find. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. When I was a young boy growing up in ...

Starlink satellites orbit Earth around every 90 minutes, so you might be able to spot them several times in one evening. That ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Most people on planet Earth right now don’t live under truly dark ...

The darkness of the night sky results from the finite, expanding universe, where light from distant stars has not yet reached ...

If you're dreaming of a crystal-clear view of the stars, far from the glow of city lights, a dark sky reserve might be your perfect destination. Light pollution — caused by streetlights, buildings, ...

GLYNDON, Minn. — When one's passion involves scanning the heavens for distant objects in the name of science or a hobby, a dark night sky is a must. Matt Craig has spent many an evening doing just ...

Correction & clarification: An earlier version of this article misstated the location of Salinas Pueblo Missions National Monument. The story has been updated with the correct information. PAGE, Ariz.

Olbers' paradox questions why the night sky is dark if the universe is infinite and densely populated with stars. A primary explanation is the universe's finite age, approximately 13.7 billion years, ...