Project Hail Mary

by Andy Weir

I cleared my throat. “Yes. Today I’ll be talking about the Astrophage’s Krebs cycle. It’s identical to what we find in Earth mitochondria, but with one additional step—” Annie held up her hand. “Oh, sorry. One more thing—” She turned to DuBois. “Martin, we have about fifteen minutes of personal time after this lesson and before our next training exercise. Want to meet up in the bathroom down the hall and have sex?” “I find that agreeable,” said DuBois. “Thank you, Dr. Shapiro.” “Okay, cool.” They both looked to me, ready for their lesson. I waited a few seconds to make sure there was no more oversharing, but they seemed content. “Okay, so the Krebs cycle in Astrophage has a variant—wait. Do you call her Dr. Shapiro while having sex?” “Of course. That’s her name.” “I kind of like it,” she said. “I’m sorry I asked,” I said. “Now, the Krebs cycle…”