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John Penn
Canton, Georgia, United States
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About
Challenges
Following
Activity
Awards
March 23, 2023, 12:40 p.m. PDT
NASA MarsXR 2 Challenge
registered for challenge
Aug. 30, 2022, 1:08 a.m. PDT
Innovative Agrophotovoltaics Structures Challenge
registered for challenge
Feb. 21, 2022, 4:08 a.m. PST
Perovskite Startup Prize
registered for challenge