22. The edge of the Earth • Earth.com22. The edge of the Earth

That white orb dangling in the distance isn’t a smudge on the photo. No, it’s actually the moon, which has a diameter of 2,158.8 miles. It managed to look so small because it was far from the crew members on the International Space Station. They snapped this serene photo of our planet’s edge in August 2013 while its celestial body glowed in the background.

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