Science Seminars

MAVEN at Four Years: Mars’ Atmosphere Past, Present, and Future

Speaker: Bruce Jakosky (LASP)
Date: Thursday, Sep 20, 2018
Time: 4:00 PM
Location: SPSC W120

Seminar Abstract:

In its four years in orbit, MAVEN has observed the Martian upper atmosphere for two Mars years. We can use the data to determine the loss of gas from the atmosphere to space integrated over Martian history. These results can be combined with observations from other spacecraft to constrain the CO2 inventory through time and the sinks to which CO2 has gone. The results tell us about the transition from an early warm, wet environment to the cold, dry climate we have to day, and also allow us to discuss the potential future human-driven evolution of the Martian atmosphere.