Right now a 6-meter-long spacecraft from Earth is speeding towards Mars for a tricky landing next week on November 26, 2018.  It’s a NASA/JPL machine called InSIGHT. That stands for Interior exploration using Seismic Investigations, Geodesy and Heat Transport. NASA wants to probe inside the red planet’s interior. InSIGHT will be moving at about 12,300 miles per hour when it begins its descent to a flat Martian plain called Elysium Planitia.

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