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NASA image: Reading the alphabet from space

NASA's Earth Observatory has tracked down images resembling all 26 letters of the English alphabet using only NASA satellite imagery and astronaut photography. In this image, the letter 'Y' is for yardangs, elongated landforms ...

dateJan 01, 2016 in Earth Sciences
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How many moons does Mercury have? (Update)

Virtually every planet in the solar system has moons. Earth has the moon, Mars has Phobos and Deimos, and Jupiter and Saturn have 67 and 62 officially named moons, respectively. Heck, even the recently-demoted dwarf planet ...

dateJan 01, 2016 in Space Exploration
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