Next Ellington leads us to the communications center, at the heart of the ship. It’s a large lab beneath the commons—computers line all four walls and in the center of the room is a clear glass tube that runs from floor to ceiling, clay-laced water like blood rushing through its length. It takes me a minute to realize we’re directly below the fountain. “This is what you came to see, isn’t it?” Ellington asks, gesturing at the consoles that beep quietly to themselves, the printers spewing out reams of data, the large processors humming with life. It’s warm down here, surrounded by all this machinery, and vidscreens around the room show us the fog and rain outside, dark space above the planet, a tiny winking dot that might be our carrier, might just be an errant star, I’m not sur