A small, high-speed shuttle on the surface of the Moon. The Messengers had been traveling back and forth between Earth’s bases scattered throughout Sol System as far as Mars.

“The launch platform’s not available? What’s the story?” Orville called on his internal comm circuit. The voice of the human transport chief at Moon Polar Base North came back in a flat monotone. “Orders from headquarters. If you have a complaint, direct it to them.”
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