Inside the Comet by Arthur C. Clarke - When George was given the chance to board the Challenger and chase after the most spectacular sight ever to appear in the heavens he could hardly believe his luck, but be careful what you wish for.

"I don't know why I'm recording this," said George Takeo Pickett slowly into the hovering microphone. "There's no chance that anyone will ever hear it. They say the comet will bring us back to the neighborhood of Earth in about two million years, when it makes its next turn around the Sun. I wonder if mankind will still be in existence then, and whether the comet will put on as good a display for our descendants as it did for us? Maybe they'll launch an expedition, just as we have done, to see what they can find. And they'll find us...