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LIVE FROM MARS: lfm
Tim Schofield
Planetary Scientist, Mars Pathfinder
Jet Propulsion Laboratory, Pasadena, California
What I Do
I am a research scientist at the Jet Propulsion Laboratory (JPL) in Pasadena,
California. At the moment I am the leader of the Mars Pathfinder Atmospheric Structure
Investigation / Meteorology (ASI/MET) experiment science team. This team is studying the
weather data returned by the ASI/MET experiment during the 83 days it was working on the
atmosphere of Mars. Most of what I do at JPL involves working with teams of engineers to
design and build scientific instruments to measure the atmospheres of other planets from
spacecraft, but I also like to work on the data that come back from these instruments
when I get a chance.
My Career Journey
I am English, and I started work in planetary science in England. I studied physics at
college and went on to study atmospheric physics afterwards. I had always been interested
in meteorology and astronomy and this led me toward a research project that involved
building an instrument to study the atmosphere of the planet Venus from the orbiting
spacecraft Pioneer Venus. During this project, I travelled to California and JPL several
times and got to know a lot of planetary scientists in America. After working on the data
from Pioneer Venus for several years in England, I got an offer to come and work at JPL
to build the same sort of instrument to look at the atmosphere of Mars. These instruments
are called infrared sounders, and measure the heat coming from atmospheres to make maps
of temperature and the different gases in the atmosphere. At JPL I spent many years
designing and building an instrument that finally flew on the ill-fated Mars Observer
spacecraft that blew up only three days before it got to Mars. One good result of that
experience is that I joined the Mars Pathfinder project and became involved in building
the completely different types of instruments needed for a weather station on the surface
of Mars.