At the North and South Poles, sunrise comes at the spring equinox, noon at the summer solstice, sunset on the autumn equinox and midnight at the winter solstice.
There’s a unique collage of more than 100 trillion microorganisms living on and in you that are essential to your life and part of what makes you, well, you. It’s your microbiome.
Check out one of the world’s most famous early photos. It shows the Wright brothers and the first true airplane on December 17, 1903.
“Nights like these are almost to good to be true.” See this touching, just-released video.
Audubon Society’s Christmas Bird Count starts December 14 and runs through January 5. It’s free and anyone can participate, but you have to sign up in advance. Here’s how.
Happy birthday, Melvil Dewey!
Video capture by a drone of dense fog with zero visibility on Tuesday, December 9, in Dallas, Texas. Amazing visuals!
Every so often, the International Space Station (ISS) becomes visible in your night sky. Here’s how you can spot it.
Glacier melt means rats can reach bird nests on South Georgia, an island north of Antarctica and east of the Falklands. What to do? Send in helicopters!