Mars may be a pristine ecosystem
Earthlings should be careful not to contaminate it
EARTH ASIDE, Mars is the most-studied planet in the solar system. Satellites zip around it. Rovers trundle over its surface. A helicopter may soon clatter through its skies, for a clutch of new missions are either on their way or planned to launch soon.
This article appeared in the Leaders section of the print edition under the headline “Tread softly”
From the July 25th 2020 edition
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