Juno Eyes Jupiter A 10th Time / Space Station Plies Evening Sky

Swirls, storms and belts, oh my! NASA released several new photos recently from the Juno spacecraft’s tenth close flyby of Jupiter on Dec. 16, 2017. Juno travels in a highly elongated orbit around Jupiter once every 53 days. For just two hours during that time, it loops in close to the planet’s polar regions to…
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Red Moon At Dawn! Don’t Miss The Jan. 31 Total Lunar Eclipse

Scrawl a big circle around the date Jan. 31. That Wednesday morning, the full moon will toddle into Earth’s shadow and be eclipsed. Unlike the August solar eclipse, where you had to be standing inside a 100-mile-wide strip to see totality, total lunar eclipses are visible across half the planet anywhere the moon is up.…
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Whale Of A Star Occulted By Tonight’s Half-Moon

Like whale watching? A star called Xi2 (ξ2) Ceti (prounced “zye-two”) in the constellation Cetus the Whale will be occulted tonight (Jan. 24) by the half moon. While not a prominent star (only magnitude 4.3), it’s bright enough to watch disappear behind the moon’s dark limb with the smallest of telescopes and possibly even a…
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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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