Mysterious driftwood high in Grand Canyon caves hints at the legacy of Arizona’s huge impact crater.

The Geminid meteor shower is an annual event visible from December 4 through December 17. This year's shower will peak on the night of December 13-14. Unlike most meteor showers which come from comets ...

The Ursid meteor shower is an annual event caused by debris from Comet 8P/Tuttle. It is active from December 17 to 26, with its peak occurring between December 22 and 23. The best viewing time is in ...

Arizona’s night skies will give local skywatchers a full year of must-see stargazing events in 2026. Cosmic spectacles like meteor showers, lunar eclipses, full moons and potentially bright comets ...