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Nighttime rainbows created by moonlight (called moonbows) are now more dependably found in Yosemite Valley, thanks to the work of a group of Texas State University (San Marcos) astronomers. As reported in the Los Angeles Times yesterday, the astronomers calculated the most likely days and times at which a moonbow might be seen in the spray and mist of Yosemite Falls.

“So far as we know, we’re the first to predict dates and precise times for when moonbows will appear,” the LA Times reported Don Olson, the Texas State astronomy professor who led a team of honors students in the project, to have said. “It’s great for people who otherwise might have sat around all night waiting to see a moonbow, and for the students it was a nice exercise in calculus, spherical trig and computing.”

CLICK HERE to see the Moonbow Table. Post a comment by clicking on the headline.