A ring or circle of light around the sun or moon is called a halo by scientists.
Posts by EarthSky
Polaris – the North Star – isn’t the brightest star. Its location is what makes it special. Here’s how to spot it.
A human observer with normal vision, standing on Mars, could easily see Earth and the moon as two distinct, bright evening or morning “stars.”
March has two birthstones – the aquamarine and the bloodstone.
On February 20, 1962, John Glenn became the first American to orbit the Earth. He made three turns around the planet before returning safely.
This year’s Chinese New Year – February 18-19 – rings in the Year of the Sheep (Goat, Ram). Gong Xi Fa Ca, y’all.
Look for the bright star Rigel below Orion’s Belt stars. If this star were as close as our sun, it would outshine the sun by 40,000 times!
Why do we kiss? Well, duh, because it feels good. But why does it feel good?
Betelgeuse is a rare supergiant star. There might be only one red supergiant star like Betelgeuse for every million stars in our Milky Way galaxy.
On February 13, 1923, Chuck Yeager, the first pilot to break the sound barrier, was born in Myra, West Virginia.