Hammel is a planetary astronomer who studies the gas giants in our solar system. She is particularly known for her research on comet Shoemaker-Levy 9's explosion in Jupiter's atmosphere in 1994. Her latest research has focused on storms in the atmospheres of Uranus and Neptune.
Chambers is an atmospheric scientist who also spends a great deal of time in education and outreach. She developed the S'COOL project and My NASA Data to enable students to share their own observations and use real data to better understand the Earth.
Razzaghi is a rocket scientist who managed the design of the Aura spacecraft, which studies the health of Earth's atmosphere.