253,304 subscribers and counting ...
How big can stars get? And how do these monster stars get so big?
Uranus lies nearly sideways with respect to the plane of its orbit around the sun. That sideways tilt makes a huge difference between winter-summer on Uranus, and autumn-spring.
No matter where you are on Earth on December, January and February evenings, you’re looking toward bright stars in our local spiral arm.
Happy birthday January babies! Your birthstone is the garnet.
Lucky New Year’s foods in the U.S. South and around the world. Happy 2017!
Before the dinosaurs, giant insects ruled the world more than 300 million years ago.
Year’s shortest day comes at winter solstice. But, for Northern Hemisphere, earliest sunsets happen around early December. Southern Hemisphere? Your earliest sunrises are around now.
One journey of our sun and planets around the center of our Milky Way galaxy is sometimes called a cosmic year. That’s approximately 225-250 million Earth-years.
A large ring or circle of light around the sun or moon is called a 22-degree halo by scientists.
The Brocken Spectre is your own shadow, cast on mists below you, when you are mountain climbing. The shadow may appear enormous and has a ring around it.
Moon approaching Jupiter on June 29
Rainbow reflected at sunset