christina is an astronaut, the reader is a data analyst... of course they fall in love, duh!! originally found on ao3 highest rankings: #1 in nasa #9 in christina koch

At NASA, everything is about control. Christina is a top astronaut. Lori is the assistant who keeps everything-and everyone-in line. They shouldn't cross that line. But there are looks that linger too long. Touches that feel intentional. Words that mean more than they should. Nothing is ever said. Still... the tension between them says everything.

In physics, a singularity is a point where the normal laws of the universe cease to exist. For you, that point has a name, a last name, and a crooked smile on her upper lip that defies all logic. After a lifetime dedicated to books and isolation, getting into NC State was your ultimate victory-the definitive proof that every sacrifice had been worth it. Yet, on the first day of class, every law of gravity you ever knew shifted on its axis. Christina Koch is brilliant, rigorous, and married. She was supposed to be nothing more than your passport to NASA, however, a single glance in Riddick Hall transforms your academic dedication into a dangerous obsession. The plan was simple: survive the semester with a flawless transcript, worthy of someone with their sights set on the stars. But no one warned you that physics cannot explain the pull of the forbidden.

Teacher x student wlw.

Maya Vance is a genius engineer with one job: keep the legendary Commander Christina Koch alive. Maya's "Aegis" system is supposed to be the most advanced biometric suit in NASA history, but when it malfunctions during a critical test, her career-and Christina's life-are put on the line. Now, Maya is forced into a grueling 3:00 AM schedule with the one woman she's admired from afar for years. Christina is cold, professional, and twice Maya's age, and she doesn't have time for mistakes. But as they work together in the silence of the empty labs, Maya realizes the sensors aren't glitching. They're picking up a rhythm the math can't explain. In the high-stakes world of the Artemis mission, the most dangerous thing isn't the vacuum of space-it's the heart rate Maya wasn't supposed to feel.

As a former biology student, taking astrophysics was pure madness. But what began as an impulsive choice soon turned out to be Lucy's discovery of her fascination with the universe - and with her professor, Dr. Koch. Between equations she barely understands and a world she never thought she belonged to, Lucy finds herself drawn deeper into both science and something she cannot quite name. Because some distances are measurable. Others are forbidden.