This region of Mercury's surface will have a new crater at about 3:30 p.m. EDT today! Traveling at 3.91 kilometers per second (over 8,700 miles per hour), our MESSENGER spacecraft will collide with the planet's surface, creating a crater estimated to be 16 meters (52 feet) in diameter. Details:http://go.nasa.gov/1zucC7M
Tags: #NASA #space #Mercury #planets #spacecraft
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