From Valles Marineris, a Fourteen-Minute Answer to Every Question

The one-way lag between Earth and the Valles Marineris colonies has stretched to roughly fourteen minutes this month, and the settlement of some fifty thousand has, as always, adapted before Earth noticed. Every exchange now arrives nearly a half-hour round trip out of date, and the colony has long since stopped holding conversations and started trading letters — recorded, considered, sent into the delay. "You learn to say the whole thing at once," relayed hydroponics lead Sanjay Rao from the Valles habitat, his message reaching the Earth relay a quarter-hour after he spoke it. The gap will only widen through autumn as the worlds separate along their orbits, colony logisticians note, a monotonic drift no dispatch can shorten. What the delay cannot stretch is the ordinary business of survival: fifty thousand people growing food under a rusted sky, keeping a second world alive one patient, time-lagged message at a time. Earth listens late, Rao said, but Earth still listens.