Summary: This is one of the wonders of the universe few people get to see.
“It’s only possible to land here during a few weeks every century,” the Doctor told Bill, waving up at the star-filled sky overhead, dominated by a magnificent view of a nearby nebula providing a dramatic backdrop to the rugged landscape. “Right now all four moons are at apogee, and also spread out around the far side of the planet, otherwise the gravitational pull they exert would suck us right out into space.”
The ground rocked beneath them and Bill gasped.
“Never mind the earthquakes, these little ones are harmless. Just don’t fall into a crack.”