I read an article recently, NASA has spotted unexpected changes in the oxygen on Mars that scientists are currently unable to explain. The Curiosity rover has been measuring seasonal changes in the gas that fills the air above one of the craters on Mars.
The data that the rover has sent back to Earth has left scientists perplexed. Oxygen levels have been fluctuating and scientists have no idea why. The amount of oxygen in the air is constantly going up and down, which is unusual and appears to be happening at random.
But why is this happening? Can anyone suggest reasons why oxygen levels might be changing so unpredictably?