NASA's small Mars oxygen experiment produced approximately 100 minutes' worth of breathable oxygen.
The Mars Oxygen In-Situ Resource Utilization Experiment (MOXIE) is a small device that generates oxygen on Mars.
In a variety of harsh planetary conditions, MOXIE was able to produce approximately 15 minutes of oxygen per hour.
The NASA team is now working on developing a larger version of the device.
which would provide not only enough oxygen to propel a return rocket to Earth, but also enough life support for a crewed Mars mission.
MOXIE necessitates the use of pumps and compressors in order to absorb carbon dioxide from the Martian atmosphere.
The device then extracts oxygen atoms from carbon dioxide to generate oxygen gas, which MOXIE has been measuring, before releasing it.