John Callas
NASA Project Manager
John Callas is a NASA project manager who has worked on several high-profile space missions, including the Mars Exploration Rover mission. He has over 20 years of experience in the space industry and has managed teams of engineers and scientists to develop and implement complex space systems. Callas has a Ph.D. in aerospace engineering from the University of Michigan. He is known for his leadership skills and his abi...
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