43 years ago today, in 1969, the Apollo 11 spacecraft touched down on the moon. Across the world, people watched as astronaut Neil Armstrong became the first man to walk on the moon, followed shortly by Buzz Aldrin. According to NASA, the pair spent 21 hours on the moon and brought back a total of 46 pounds of moon rocks. And of course, Armstrong was engraved in history for his now famous quote, “That’s one small step for a man, one giant leap for mankind.”
This cover of the September 17, 2010 issue of Science shows a topographic map of the Moon based on measurements from the Lunar Orbiter Laser Altimeter. Image: NASA/LRO/LOLA/GSFC/MIT/Brown. Click the image for more information.
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