Martian Year – How Long is It? NASA Explains | Video

By Steve Spaleta | May 5, 2017 07:10pm ET

One year on Mars is 687 Earth days, which makes the seasons longer on the Red Planet. NASA’s Jet Propulsion Laboratory explains what challenges it presents to rovers and spaceflight to Mars.
 

credit : NASA/JPL-Caltech

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Space, astronomy and science