Yahoo News UK
It’s not the smoking gun which proves that there is still life on Mars – but it’s certainly a new gas mystery from the Red Planet.
NASA’s Mars Curiosity Rover spotted rising and falling oxygen levels on Mars – and the amounts don’t fit what we know about Mars.
During spring and summer on Mars, oxygen levels rise by up to 30%, and it’s a figure that the NASA team are still struggling to explain.
Melissa Trainer of NASA’s Goddard Space Flight Center said, “We’re struggling to explain this.
“The fact that the oxygen behaviour isn’t perfectly repeatable every season makes us think that it’s not an issue that has to do with atmospheric dynamics.