Unveiling the Secrets of Mars' Atmosphere.

The ExoMars Trace Gas Orbiter has discovered that the atmosphere of Mars is formed from carbon monoxide with less heavy carbon than expected, providing an explanation for certain compounds of organic matter found in the soil of the red planet. The finding is the result of exhaustive analysis of data collected by the TGO after eight orbits between March and April 2022. The study's lead author, Shohei Aoki, said measuring the carbon isotopic ratio in monoxide is a powerful way to understand where the planet's organic matter comes from and reveal the habitability history of Mars.