Arizona's dark skies are a haven for astronomers and photographers. Some communities are fighting to keep them that way.

Guns fired, a mechanical trumpet blared taps, and a folded flag was presented to Craig’s wife, all under a gray, cloudy sky.

Who's up for an early morning rocket launch? Weather permitting, a SpaceX Falcon 9 rocket should be visible on Florida’s ...

Depending on weather and clouds, rocket launches from Kennedy Space Center or Cape Canaveral can be seen from Daytona Beach ...

Known as Noctilucent or night-shining clouds, twilight clouds are typically seen on Earth during the summer, but this time, ...

Patsy Cockerham is sharing these linear looking clouds captured on Thursday, Feb. 13 after a dreadful week of cold rain and ...

The Sun sets differently on Mars. Part of that is due to its distance from the star (an average of 142 million miles versus ...

Curiosity, a set of NASA 's robotic "eyes" on the Red Planet, recorded 16 minutes of so-called noctilucent clouds flying ...

A mysterious object that looked vaguely like a comet or a meteor was seen soaring over night skies in the southwestern U.S., ...

Readers’ photos celebrate sunrises and sunsets, when the light is the most pleasing. Fifty-one photos were sent in; here are ...

To see the northern lights in Colorado, a KP index of 5 or higher is usually needed. The KP index measures geomagnetic ...