May 25 - Top Stories This Week

May 25 Top Stories This Week by:

Northern lights over Lake Lappajärvi in Finland. Image via Santeri Viinamäki.

Magnetic north is shifting fast. What’ll happen to the northern lights? As magnetic north shifts towards Siberia, the northern lights could move with it. Huge double asteroid to pass safely today It's oddly shaped, about a mile wide, with a companion moon. It's not visible to the eye, but we have charts here for amateur observers with telescopes across the globe. Close encounter sets galaxy ablaze with new stars A cosmic collision in action. More top stories Polaris is the North Star New evidence for Pluto's subsurface ocean Why the moon's near and far sides look different What is the Brocken Spectre? What Chang'e 4 learned from the moon's far side Send your name to Mars Lush underwater forests … in the Arctic Bound for Mars in 2020

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2019's closest far moon is this weekend The moon's orbit around Earth isn't a perfect circle, although - as the diagram above shows - it's nearly circular. The moon is at last quarter on Sunday. And the moon is also at apogee - farthest from Earth for the month - on Sunday. The close alignment the 2 events gives us the closest apogee - the closest far-moon - of 2019. Read more. This excellent diagram, by the way, is by Brian Koberlein. Used with permission.

Another beautiful sunrise Janine Wood captured the sunrise in Lititz, Pennsylvania, on May 21. Thanks, Janine, for contributing to EarthSky Community Photos! Submit your photo to EarthSky here! Did a friend forward EarthSkyNews to you? Click here to get your own subscription!

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