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The EarthSky team has a blast bringing you daily updates on your cosmos and world. We love your photos and welcome your news tips. Earth, Space, Human World, Tonight.
Eleven-year-old Venetia Burney suggested Pluto, a classical mythological god of the underworld. The name also honored Percival Lowell, whose early efforts led to Pluto’s discovery.
People traveling in airplanes often see glories. The sun has to be behind your head. You’ll see the plane’s shadow cast on a cloud, surrounded by a halo of light.
A rainbow isn’t a flat 2-dimensional image on the dome of sky. It’s more like a mosaic, composed of many separate bits … in 3 dimensions.
If you only ever learn one star mnemonic, make it this one!
It’s their active season. Here are some things you might not know.
Polaris – aka the North Star – marks the end of the Little Dipper’s handle. The 2 outer stars in the bowl of the Big Dipper always point to Polaris.
A photographer compares the colors of the stars Rigel, Betelgeuse and Sirius.
Here’s an easy astronomy lesson, from a master in the art of loving nature.
The Ides of March are March 15. We in modern times probably wouldn’t know about them, if it weren’t for William Shakespeare.
The Big Dipper is easy to recognize, but the Little Dipper … not so much. Here’s a tip that can help.
Waxing moon over Amsterdam
Moon sweeps near Saturn and Mars September 17 to 19