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Astrochemistry

3 rovers will head to Mars in 2020. Here’s what you need to know about their chemical missions

For the first time, China, Europe, Russia, and the US could have vehicles on the Red Planet operating simultaneously

by Sam Lemonick
July 21, 2019 | A version of this story appeared in Volume 97, Issue 29
A colorized image of Mars's Jezero crater.

Credit: NASA/JPL-Caltech/MSSS/JHU-APL | The Mars 2020 rover will explore an ancient delta in Jezero crater, shown in this colorized image.

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