He is senior research scientist at NASA's Langley Research Center and principal investigator on the Mars ARES mission.
NPR: Revisiting the Viking Missions to Mars
We're talking with Joel Levine, senior research scientist at NASA's Langley Research Center.
Joel Levine is senior research scientist at NASA's Langley Research Center and principal investigator on the Mars ARES mission proposed some time in the future.
Dr. JOEL LEVINE (Senior Research Scientist, Langley Research Center, NASA): Thank you, Ira.
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