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The first detailed map of another planet 🗺️

#50YearsAgo today, the US Geological Survey @USGS's global map of Mars was published. It was created using over 7,000 photos taken by @nasa's Mariner 9 spacecraft.

Read more:https://go.nasa.gov/3i3S6as
#NASAhistory
in reply to NASA

Those features on the center-left stick out. With the lines around the peaks, it almost looks like a happy puppy dog!

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