From the paper in the article: >"MAVEN has observed the Martian upper atmosphere for a full Martian year, and has determined the rate of loss of gas to space a

From the paper in the article: >"MAVEN has observed the Martian upper atmosphere for a full Martian year, and has determined the rate of loss of gas to space and the driving processes; 1–2 kg/s of gas are being lost." https://www.sciencedirect.com/science/article/pii/S0019103517306917 https://www.sciencedirect.com/science/article/pii/S001910351...