A small device, Moxie, has produced oxygen on the surface of Mars,    1     (bring) the chances of surviving on the red planet a step closer. Research published in     2     journal Science Advances reported that Moxie produced breathable oxygen in seven-hour-long tests conducted in various weather and atmospheric conditions last year. The research also found that even in       3    (extreme) harsh weather conditions like a Martian dust storm, Moxie     4    (continue) to produce high purity oxygen.

“This is the first demonstration of actually using     5    (resource) on the surface of Mars and transforming them chemically into something useful for a human mission,” Jeffrey Hoffman, a retired astronaut, said.

“The thin atmosphere on Mars is 96 percent carbon dioxide and much more     6    (change)than on Earth and the temperature can vary by 100 degrees, ” Hoffman said. “One aim is     7    (show) we can run Moxie in all seasons.”

The device, Moxie, uses some special pumps,     8     take in carbon dioxide. The gas     9    (heat) to 800°C and pressed to separate the carbon and oxygen. Carbon monoxide is sent out as waste while the pure oxygen is left behind.

Despite the challenges, Moxie has proved durable in the extreme conditions on Mars and scientists regard the test results     10     a great achievement.