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Grand Canyon National ParkAnnual meteor showers like the Perseids can give lovely shooting star displays – but they don’t produce meteorites. That’s because the tiny particles involved are made of fluffy, low-density clay-like material which burn up before reaching the ground. -
Grand Canyon National ParkOn the evening of October 9, 1946, members of the Kaibab Trail crew at the Grand Canyon National Park were watching the sky during a meteor shower caused by the trail of Comet Giacobini-Zinner.
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Magpies have earned a bad rap as the bully in the birdyard — some even call them the birds everyone loves to hate. But the often-misunderstood magpie may deserve a little more credit than they get. -
The barrel cactus won’t slake your thirst on a hot desert day. It’s named for its stout shape, not its contents. -
The Coconino National Forest established designated "Quiet Areas" — now known as "Seasonal Closures" — in the 1980s to provide recreational spaces free from motorized traffic at certain times of the year. -
How will future inhabitants on Mars and the Moon get their veggies? Northern Arizona University doctoral candidate Laura Lee has been seeking the answer to that question. -
A project below Glen Canyon Dam is targeting invasive smallmouth bass that threaten native fish in the Colorado River. -
The Bradford pear was one of the most widely planted ornamental trees in North America. But it's now largely considered invasive and outlawed in several states. -
High summer temperatures make Flagstaff’s thin air feel even thinner. Density altitude affects your body, turning a simple mountain hike into a tough physical workout. -
The San Francisco Peaks volcanic system includes some tiny residents — small, rare plants that grow in difficult terrain. Citizen scientists are trying to document them. -
Have you ever noticed a large, fuzzy, brightly-colored ant moving rapidly along the ground? Commonly called velvet ants, these aren’t ants at all. They’re actually wingless wasps. -
Three decades ago, the use of cloud seeding to enhance precipitation over the region was tested as part of a large field experiment.
