Moon’s Shadow Ruffles Ionosphere During Last Year’s Solar Eclipse

Row, row row your boat. The waves look just like a wake and follow the moon’s shadow from the central U.S. eastward. The red line is the time of local noon. MIT The 2017 total solar eclipse drew so many of us together in a single, grand cosmic moment. While we took in the sight,…
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See What Comets And Blizzards Have In Common

If you’ve ever driven through a snowstorm you know how disorienting it can be. Millions of flakes rebounding off your windshield. White-out conditions. It’s not so different for a spacecraft orbiting a comet. The European Space Agency’s Rosetta mission had a similar experience, for more than two years, as it flew alongside Comet 67P/Churyumov–Gerasimenko between 2014…
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Neptune By Way Of The Moon

Tonight, the crescent moon will look about a wide as an unclipped fingernail. You’ll spot it right away in the southwestern sky at dusk, high and bright. Just 2° (four moon diameters) to the moon’s upper right lurks another member of the solar system, the planet Neptune. The two are in conjunction tonight in the…
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Hunters Recover First Meteorites From Michigan Fireball

On Jan. 16 around 8:10 p.m. local time, a brilliant, green fireball sliced across the skies of southern Michigan near Ann Arbor. Many eyewitnesses said it looked as bright as a full moon. The American Meteor Society, a clearinghouse for meteor sightings, has received about 640 reports so far from people who saw the object…
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Tonight’s Scrap-of-a-Moon Challenge

Tonight’s moon will barely be there, but that’s exactly what will make it so beautiful. New moon occurred yesterday at 8:17 p.m. (Central Time), making this evening’s moon just 20 hours old from the East Coast, 21 hours from the Midwest, 22 from the mountain states and 23 from the West Coast. Very young and…
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