Photograph of NASA’s Artemis rocket on its launch pad with a large American flag.

Detailed view of the Artemis II rocket.

Lehigh to Liftoff

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Mark Riddle ’87, Christina Mancinelli ’03 ’04 and Terry Hart ʼ68 Hʼ88 Pʼ27 are helping shape the future of aerospace through engineering, creativity and the Artemis era.

Photography by

NASA Media Relations

Frank Michaux

Christa Neu

When millions watched the launch of Artemis II, NASA’s first crewed lunar flyby in 50 years, two Lehigh alumni were working behind the scenes to make that historic moment possible.

Mark Riddle ’87 and Christina Mancinelli ’03 ’04 launched careers in aerospace after graduating from Lehigh and trace their success back to the same foundation of curiosity, interdisciplinary thinking and a willingness to take on challenges that once felt out of reach.

Their stories reflect the collaboration, precision and imagination required to push aerospace technology forward.

Mark Riddle ’87: Engineering the Artemis Rocket

Photograph of a man smiling in front of the NASA Artemis rocket on its launch pad.

Mark Riddle ’87

Riddle, an operations engineer supporting Amentum at NASA’s Kennedy Space Center, helped prepare and validate the umbilical systems used in support of Artemis missions.

The umbilical systems provide power, fuel, air and data to the rocket while it stands on the launch pad.

Read more about Riddle here.

Christina Mancinelli ’03 ’04: Soaring in the Aerospace Industry

Photograph of a smiling woman with dark hair in a black blazer.

Christina Mancinelli ’03 ’04

Mancinelli serves as vice president of global communications and navigation at Lockheed Martin, overseeing more than 1,500 employees across 20 programs supporting space and ground systems that enable national security space missions.

Read more about Mancinelli here.

Terry Hart ʼ68 Hʼ88 Pʼ27: A Lehigh Legacy in Aerospace

Photograph of a smiling male professor in front of a blackboard with mathematical diagrams.

Terry Hart ʼ68 Hʼ88 Pʼ27, former NASA astronaut and teaching full professor of mechanical engineering and mechanics.

Former NASA astronaut and U.S. Air Force fighter pilot Terry Hart ʼ68 Hʼ88 Pʼ27 joined Lehighʼs faculty in 2004 and recently founded the universityʼs masterʼs in aerospace engineering program.

Hart, teaching full professor of mechanical engineering and mechanics, flew aboard STS 41-C Challenger, NASAʼs 11th Space Shuttle mission, launched from Kennedy Space Center in April 1984. During the mission, the crew logged 168 hours in orbit and became the first astronauts to repair a satellite from the shuttle. Hart also helped complete the shuttle programʼs first rendezvous mission and operated the Remote Manipulator System that retrieved the Solar Maximum Satellite for repairs.

More than four decades later, Hart continues to share his expertise and appeared on CNN, CBS News and NewsNation during coverage of the Artemis II lunar flyby. His experience as a former astronaut and aerospace expert helps connect Lehighʼs history in human spaceflight to a new generation of alumni helping shape the future of space exploration.

“[Exploration] is what makes us human, curiosity, wondering why things are the way they are,ˮ Hart said. “When historians look back on this time, they might conclude that the best thing that came out of the space program was that sense of oneness that people have when they see how perishable the Earth is. We have to take good care of the planet, and we have to take good care of each other.ˮ

Stories by Katie Clarke and Skye Cruz

Photography by

NASA Media Relations