Those who admire the shape of a Christmas tree might like to know that its shape has evolved in response to wind, snow, and light.
Posts by EarthSky
How sunlight falls on Earth’s surface during the solstices and equinoxes, as seen from geosynchronous orbit.
Recent photos of Wisdom – the world’s oldest known, banded wild bird at an estimated age of 63 – with her newest egg. Go, Wisdom!
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.
A new study looks at how birds localize sounds. It seems that their slightly oval-shaped head transforms sound waves in a similar way to external ears.
Humans and vocal birds like parrots use essentially the same genes to speak.
Songbirds and other birds sprang from dinosaurs, too. But new work indicates that chickens and turkeys are genetically closest to their dino ancestors.
Meteors begin to glow almost as soon as they hit Earth’s atmosphere, but tend to vaporize (burn up completely) at varying altitudes.
Saturday night until Sunday morning will probably present the peak night of the Geminid meteor shower. But Friday night to Saturday morning might be almost as good. If it’s clear tonight, don’t let your opportunity slip away.
You might see a lot or you might not see many, but if you stay in the house, you won’t see any.