He clambered briskly into his EVA suit. Comfortable and easy to use, the suit was the result of six decades’ development from the clumsy armor worn by the Apollo astronauts. And it was smart, too; some said so smart it could go out Moonwalking by itself.

But smart suit or not, Mikhail worked cautiously through a series of manual checks of the suit’s vital systems. He lived alone here at the Moon’s South Pole, save for the electronic omnipresence of Thales, and everybody knew that low gravity made you dumb—the “space stupids,” they called it. Mikhail was well aware of the importance of concentrating on the chores necessary to keep himself alive.

Still, it was only minutes before he was locked tight into the warm enclosure of the suit. Through the slight distortion of his wedge-shaped visor he peered out at his small living quarters. He was a man equipped for interplanetary space, standing incongruously in a clutter of laundry and unwashed dishes.

Then, with a grace born of long practice, he pushed his way out through the airlock, and then the small dustlock beyond, and emerged onto the surface of the Moon.

Standing on the slope of a crater rim mountain, Mikhail was in shadow broken only by sparse artificial lighting. Above him stars crowded a silent sky. When he looked up—he had to lean back in his stiff suit—he could make out dazzling splashes of light high on the crater wall, places the low polar sunlight could reach. Solar-cell arrays and an antenna farm had been placed up there in the light, as well as the sun sensors that were the Station’s main purpose.

This Space Weather Service Station, dug into the wall of a crater called Shackleton, was one of the Moon’s smaller habitats, just a few inflatable domes linked by low tunnels and heaped over by a layer of charcoal-gray Moon dust.