Dec 17 - Amazing Jupiter

December 17 Amazing Jupiter by:

A series of color-enhanced images of Jupiter from NASA's Juno spacecraft. Citizen scientists Gerald Eichstädt and Seán Doran created this image using data from the spacecraft's JunoCam imager. Juno mission to Jupiter at halfway point This Friday, NASA's Juno spacecraft will make its 16th science pass over Jupiter's cloud tops, marking the halfway point in its prime mission. Check out this bonanza of amazing images. Don't miss the Jupiter-Mercury conjunction You need an alarm clock and a clear sky to the east, the sunrise direction. Binoculars will come in handy. The 2 bright planets will come closer and closer, finally closest on December 21. Beautiful! Charts here. Exoplanet's helium atmosphere inflated like a balloon It's a Neptune-sized exoplanet with an even larger helium atmosphere than thought. The atmosphere is literally inflated like a massive balloon. Read more. NOAA releases 2018 Arctic Report Card The Arctic region experienced the 2nd-warmest air temperatures ever recorded, the 2nd-lowest overall sea-ice coverage, and lowest recorded winter ice in the Bering Sea. Watch video. NASA's Operation Icebridge captured this image of the town of Narsaq in Greenland in April 2018.

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Tonight … Start watching for Ursid meteors The Ursid meteor shower peaks around the December solstice, which, in 2018, features a full moon. Start watching for them now in the early morning, radiating from near the northern sky's Little Dipper. Read more.

Up and down sun pillar Michael Busch captured this pair of photos on December 12 and wrote: "Incredible sun pillar above and then below the sun. Fire Island, New York." Wow! Thanks, Michael! Here's what makes 'em. Submit your photo to EarthSky here! Did a friend forward EarthSkyNews to you? Click here to get your own subscription!

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