Daniel Cohen's career arc is a clean illustration of NASA's intern-to-engineer pipeline working as designed. He entered Johnson Space Center as a flight operations intern in 2020, rotated through docking dynamics, propulsion, and GN&C analysis, and joined full-time in August 2024. Two years later, he's mentoring the next cohort on the same systems he learned. The technical work is real and consequential. Cohen develops simulations and models for the U.S. Deorbit Vehicle — the spacecraft that will bring the International Space Station down safely at end of life. He also analyzes control algorithms and GN&C performance for that vehicle and evaluates SpaceX's design at multiple life-cycle reviews. Separately, he works on Orion's docking camera settings for Artemis rendezvous navigation. His intern, Malvika Bhardwaj, studies computational and applied mathematics at Rice University and is building analysis tools for thruster firings on the Deorbit Vehicle. She runs computer simulations to stress-test the vehicle's control system and identify failure conditions. This is not busywork — it feeds directly into an active program with hard deadlines. Cohen sets aside a couple of hours each week to teach interns orbital mechanics and control systems. That's a nontrivial time investment for a working engineer. When Bhardwaj asked whether he could afford the time, his answer — "You decide what's important" — is the kind of values statement that either gets backed up by behavior or doesn't. In this case, it appears to be backed up. The knowledge-transfer model here is informal but structured: Cohen introduces interns to the broader team, includes them in meetings and conversations, and gives them visibility into how collaboration actually works on flight programs. Bhardwaj credits this with teaching her that problem-solving at NASA is collective, not individual. Bhardwaj completed her first project — a set of analysis tools built from scratch — and describes the debugging-to-functioning-product arc as the most rewarding part. Her advice to prospective interns: apply even if you don't feel ready. "So much of the learning happens on the job," she said. The broader pattern matters more than any individual story. NASA's Office of STEM Engagement runs this pipeline at scale, and Johnson's GN&C group is one node in that system. The question is whether enough Cohens exist across the agency to sustain institutional knowledge transfer as senior engineers retire and programs like ISS deorbit and Artemis ramp up simultaneously.
