Angela Krenn

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About

Angela Krenn is a leading aerospace engineer at NASA’s Goddard Space Flight Center, whose work is central to advancing in-space servicing and cryogenic fluid management. Her primary research focuses on developing robotic technologies for satellite refueling and repair, with a particular emphasis on the storage and transfer of cryogenic propellants—a critical capability for long-duration space missions. Krenn’s most notable contribution is her leadership on the Robotic Refueling Mission-3 (RRM3), an external payload on the International Space Station that successfully demonstrated techniques for transferring liquid methane in microgravity. Her overview of this mission, published in 2020, has garnered 20 citations and serves as a foundational reference for future cryogenic fuel depots. Through RRM3, Krenn has directly addressed one of the key challenges for sustainable space exploration: enabling spacecraft to be refueled on orbit rather than discarded. Her work has profound implications for extending satellite lifetimes, reducing space debris, and supporting ambitious goals like lunar bases and Mars missions. Krenn’s achievements mark her as a pivotal figure in the evolution of autonomous space operations.