Most of us think we know what Earth looks like. Then you stumble on a place that doesn’t fit the script—salt that turns the ground into a perfect mirror, rock formations that look sculpted by ...

Experiments on Earth indicate some common species of bacteria and fungi could survive for several days on the moon's surface, ...

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In the middle of WWII, engineer Charles Zimmerman built one of the strangest aircraft ever to take flight - the Vought V-173 “Flying Pancake.” With its flat, circular wing and twin massive propellers, ...