EarthSky News - Apr 28 - Ceres Landslides, Magnetic Field Reversals, Skyglow Giveaway

April 28 Ceres Landslides, Magnetic Field Reversals, Skyglow Giveaway by:

Help EarthSky keep going If you enjoy this email, please help keep it coming. Donate today. Prefer PayPal or to send a check? Go here. Only 8 more days! We need you. Landslides on dwarf planet Ceres Great images from Dawn spacecraft of landslides - now thought to be common - on dwarf planet Ceres.  Tonight ... See a star whose magnetic poles flipped Tau Boötis was the first star, other than our sun, ever seen to undergo a magnetic field reversal. This post also includes 2 videos about our own sun's magnetic reversals. New Project Skyglow video and giveaway It's not too late to enter Project Skyglow's giveaway, honoring International Dark Sky Week. Friday FAQ: What is a glory? 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.

EarthSky Lunar Calendars are on sale 50% OFF A unique and beautiful poster-sized calendar. Keep up with all phases of the moon every night of the year. Only about 100 left in stock, get them while you can!

A star whose magnetic field flipped The star Tau Boötis made history when astronomers caught its magnetic field reversing. You can see this star in a dark country sky.

What is a glory? The shadow of the plane is called a brocken spectre, and the ringed light around the shadow is the glory. March 12, 2017 photo by Gowrishankar Lakshminarayanan. Submit your photo to EarthSky here!

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