Presence of oxygen in the atmosphere would NOT be a problem for astronauts when they got to Mars?
What is NASA?
NASA refers to the National Aeronautics and Space Administration, an agency of the united states government saddled with the responsibility of space exploration.
Over the years, NASA has engaged in space exploration and they have realized that life may be feasible in Mars.
Learn more about NASA at https://brainly.com/question/1350178
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