A selfie taken by NASA

In a first-of-its-kind experiment, NASA’s Perseverance rover has produced enough oxygen on Mars to keep an astronaut alive for three hours.

The rover, which first touched down on Mars in February 2021, produced the element using its Mars Oxygen In-Situ Resource Utilization Experiment (MOXIE) device — which generated the oxygen by converting carbon dioxide in periodic bouts over two years.

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