Arizona has some of the prettiest sunsets, but why? There's a science behind it. Here's what to know, including sunset times and spots to see it.

So when the Thunder returned the favor ... Ironwood rallies over Willow Canyon as both turn attention to Open Division playoffs Grand Canyon women's basketball has nation's longest active Division ...

The largest agricultural boom on the planet threatens to destroy a spectacular savanna. Here's what happens when progress ...

The 1956 collision over the Grand Canyon killed more than 100 people. At the time, it was the deadliest civilian plane crash and it remains one of the worst in U.S. history. Here's everything you need ...

Part of a volcanic flow that erupted 560,000 years ago, the basalt section dropped down along the fault over time ... at a signed trail junction. Thunder Mountain Trail turns left, while Grand View ...

Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

A German skydiver used the Grand Canyon ... of Grand Canyon National Park. The idea didn’t even sound easy on paper. Manow would leap from a helicopter, skydive over a gorge along the Colorado ...

Heart-pounding video captured the moment a German skydiver became the first person to achieve an extreme death-defying stunt over the Grand Canyon in Arizona. Max Manow successfully executed what ...

The 1956 collision over the Grand Canyon killed more than 100 people. At the time, it was the deadliest civilian plane crash and it remains one of the worst in U.S. history. Here's everything you ...