All the illions from Cosmos, in order

Why? Because we love Carl Sagan.

Audubon’s Christmas Bird Count starts December 14

Audubon’s Christmas Bird Count is one of the longest-running citizen science projects in existence. Here's how to participate.

Turning hurricanes into music

A meteorologist and a music technologist are turning data from tropical storms into musical graphs. Can listening to storms help us understand them better?

Yetis? Nope. DNA study says bears

A new DNA study of purported Yeti samples from museums and private collections is providing insight into the origins of this Himalayan legend.

See it! December’s full supermoon

December's full supermoon was the closest and brightest full moon of 2017. Wonderful photos here from the EarthSky community around the world.

Do songbirds share ‘universal grammar’?

A new study suggests that humans and songbirds have common biological hardwiring that shapes how they produce and perceive sounds.

Your dog is good for your heart

Can your dog help you live longer? Maybe, according to a new study of the association between dog ownership and cardiovascular health among more than 3.4 million Swedes.

Now we know Earth blocks neutrinos

"This achievement is important because it shows, for the first time, that very-high-energy neutrinos can be absorbed by something -- in this case, the Earth."

Waving hi to ISS

Karthik Easvur created this image as the International Space Station soared over Hyderabad, India on November 22. How you can spot it. Plus, who's aboard ISS now?

Our nights are brighter, and brighter

The International Dark-Sky Association has campaigned for decades to reduce artificial light at night. Yet a new study shows our night skies still brightening at a rate of 2 percent each year.