What it looks like in the Arctic Circle when the Sun never sets

This time lapse shows what 24 hours of a summer day (and I guess, a summer night) looks like in the Arctic Circle. You can see the Sun rising and setting like it normally does anywhere else but instead of disappearing beyond the horizon as the Earth turns, it pops right back up and the world never turns dark. Read more…

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What it looks like in the Arctic Circle when the Sun never sets

New high-res maps of Earth’s surprisingly inconsistent gravity field

Though it seems hard to believe, Earth’s gravitational pull is not the same everywhere you go. And as these gorgeously detailed maps now show, these variances are much greater than we thought. Read more…        

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New high-res maps of Earth’s surprisingly inconsistent gravity field