A large ring or circle of light around the sun or moon is called a 22-degree halo by scientists.

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.

It’s sometimes said that, on a worldwide scale, solar eclipses outnumber lunar eclipses by about a three to two margin. True?