The annual fall phenomena the Orionid meteor shower is back again. Here is everything to know about when, where and how to ...

The annual fall phenomena the Orionid meteor shower is back again. Here is everything to know about when, where and how to ...

Planning a trip to Arizona? Here are 12 must-see attractions, from the Grand Canyon to Monument Valley, and other ...

Karl Karlstrom, a geologist recently retired from the University of New Mexico, grew up in Flagstaff, Arizona. Grand Canyon ...

The Taurids will be the next meteor shower, peaking during the first week of November. Here's when to catch fireballs ...

The month of October is hosting multiple celestial events and one of them is a double-comet spectacle. Here's how to see the ...

Keep an eye on the night sky in October—you might catch a falling star! The Orionid meteor shower reaches its peak on the ...

The shower is produced by Halley’s comet’s debris, and could offer strong viewing opportunities because the moon is new this ...

From Sedona’s red rocks to the Grand Canyon’s sweeping views, these must-see attractions in Arizona are anything but tourist ...

Comet Lemmon can be seen in the northwestern sky near the bright star Arcturus. Skywatchers should use the Big Dipper to ...

A recent study from the University of New Mexico has proposed a fascinating theory about the formation of the Grand Canyon.

As Earth passes through the densest part of debris from the famed Halley's comet, the Orionid meteor shower will hit its annual late-October peak.