Cosmic Rays Make The Moon Glow Brighter Than The Sun

If your eyes were sensitive to every form of light, a rainbow wouldn’t end at red and violet. Beyond red you’d see infrared, which we sense as heat, and beyond that the microwaves that cook your food and radio waves that carry music and news to your FM radio. After violet lies ultraviolet (responsible for…
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Nights Of The Barley Moon

Just a reminder that the moon will be full around 8:30 tomorrow morning (Aug. 14) Central Time. That means both tonight and tomorrow night the moon will rise about 99.5 percent full. For most of us it will appear full with the naked eye and only betray a slight out-of-roundness in binoculars or a telescope.…
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Amateur Discovers ‘Churymoon’ Orbiting Rosetta’s Comet

Sometimes a pile of data and an eye for detail are all you need to make an amazing discovery.  Several months back, Spanish astrophotographer Jacint Roger spotted an object orbiting comet 67P/Churyumov-Gerasimenko while mining the Rosetta image archive. In case you forgot, Rosetta was the European mission that rendezvoused with the comet in August 2014 and…
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August Dawns Hint Of Seasonal Change

Earth is back to rationing daylight. After summer’s surplus, we see and feel it slipping away in earlier sunsets and later sunrises. Here in Duluth, Minn. we’ve lost 40 minutes of daylight in the evening compared to the first day of summer. Sunrise times have eased back as well with a gain of another 45…
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Hubble’s Hubba-Hubba Jupiter Photo, Tonight’s Splendid Conjunction And A Jovian Hit

There’s nothing like a Hubble photo of Jupiter. This sweet image was made on June 27 and features the planet’s turbulent pastel cloud belts and iconic Great Red Spot (GRS). The bands or belts are created by differences in the thickness and height of Jupiter’s ammonia ice clouds. The flow in opposite directions at various latitudes,…
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