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April 15 @ 4:00 pm - 5:00 pm CDT

Current Research in EEPS: Dr. Edwin Kite, University of Chicago

How did Mars’ surface become uninhabitable?

Mars’ river valleys are dry today. What allowed rivers and lakes on Early Mars, which received just 1/3 of the modern Earth’s insolation? And why did Mars’ surface become uninhabitable? Data from rovers and orbiters have revealed a rich stratigraphic record of climate-sensitive deposits, allowing models to be tested. We have found that the greenhouse effect of high-altitude water ice clouds is a possible explanation for the warm climates – but only if the surface was arid, consistent with the geologic record. A new synthesis of geologic data and models suggests that water loss, CO2 loss, and loss of non-CO2 greenhouse forcing combined in surprising ways to set Mars’ habitability trajectory. While lake-forming climates on Mars occurred over a time span of >1 Gyr, now Mars’s surface is too cold and dry for life. I will discuss ways in which Martian surface habitability could be re-enabled.

 

Details

Date:
April 15
Time:
4:00 pm - 5:00 pm CDT
Event Categories:
,

Venue

Dept. Earth Science, Rice University, 6100 Main Street
Houston, TX 77005 United States
+ Google Map
Phone:
7133484880

Details

Date:
April 15
Time:
4:00 pm - 5:00 pm CDT
Event Categories:
,

Venue

Dept. Earth Science, Rice University, 6100 Main Street
Houston, TX 77005 United States
+ Google Map
Phone:
7133484880

For outside visitors, the best way to get to our department is to come in on Rice Blvd and turn left into entrance 20 (intersection of Rice and Kent St.). At the stop sign, you will see a visitor parking lot on your right.  From there, walk east to the department.  The google map below shows exactly where our building is.