June 9 - Iridescent cloud? Or circumhorizon arc?

June 9 Iridescent cloud? Or circumhorizon arc? by:

View at EarthSky Community Photos. | Eric Broneer in Marseille, France, caught this circumhorizon arc on June 3. He wrote, "Beautiful weather, very dry, sun behind me."

Iridescent cloud? Or circumhorizon arc? It's easy to confuse these 2 elusive, colorful, beautiful daytime sky phenomena. How can you tell the difference? Read more. Waterfall illusion: Still objects seem to move Find out what this visual illusion says about your brain. Watch videos and read more. ALMA spies a cool gas ring around our Milky Way’s central black hole Here's a never-before-seen disk of cool, interstellar gas wrapped around the 4-million-solar-mass black hole at the center of our galaxy. Scientists call this black hole Sagittarius A*, pronounced Sagittarius A-star. Read more. 1st quarter moon is June 9-10 It comes on June 10 at 05:59 UTC. You'll find the moon high up at sunset both Sunday and Monday evenings, appearing nearly or completely half-illuminated, like half a pie. Read more.

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Tonight … Moon in Leo the Lion Tonight's moon has moved closer to the tail of the Lion, marked by the medium-bright star Denebola. When you see the word deneb in a star name, it always means tail. Read more.

Storm over the Illinois prairie View at EarthSky Community Photos. | Joshua Milles was at Rend Lake, Illinois, on June 5 when he caught this storm rolling in. Thank you, Joshua! Submit your photo to EarthSky here! Did a friend forward EarthSkyNews to you? Click here to get your own subscription!

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