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Interesting Phenomena

This turbulently undulating cloud photographed over Cedar Rapids Iowa may soon be designated as the first new cloud type named in over 50 years: Undulus Asperatus. Source: Jane Wiggins

Aerogel, also know as frozen smoke, is the world’s lowest density solid, clocking in at 96% air. If you hold a small piece in your hand, it’s practically impossible to either see or feel, but if you poke it, it’s like styrofoam. It supports up to 4,000 times its own weight and can withstand a direct blast from two pounds of dynamite. It’s also the best insulator in existence.

Frozen bubbles at Abraham Lake in Kootenay Plains, Alberta, Canada (by Fikret Onal).

The rocks are famous because they move, leaving tell-tale trails in the clay, like this one. This happens at several playa in California and Nevada. There's no record of anybody seeing one of the rocks move, and scientists aren't quite sure how it happens. But they know that it's not the work of animals, gravity, or earthquakes. Photo credit: NASA/GSFC/Cynthia Cheung.

There’s a place in Ireland where every 2 years, the stars line up with this trail on June 10th-June 18th. It’s called the Heaven’s Trail.

Icy Hot; photograph by Scott Smorra. Sunrise light at Borax Hot Springs in the Alvord Desert of Oregon. Titled Icy Hot since the air temp was 5 degrees F and the water temp in the hot spring is 180 degrees F.