From Lowell Observatory to Kitt Peak to Mount Graham, here are the 11 best planetariums and observatories in Arizona and ...

The Lyrid meteor shower occurs every April and is known for its bright, fast-moving meteors and occasional fireballs. The ...

Arizona was not in the path of totality, but the sky took on an eerie dim gray cast around midday as the moon crossed paths with the sun. Here's when to see the next total solar eclipse in North ...

It's been a year since a total solar eclipse shrouded the U.S. in darkness. Here's when is the next solar eclipse in 2025, and the next total eclipse.