Counters styled as either "stars" or "comets" move across the board taking opponents' pieces.

Now the comet moved in a cloud of glowing fog that might have shielded it from the heat, but didn't.

The control thrusters had to fire more and more frequently as the comet moved in closer to the inner planets of the star system.

The comet moved on a northward path across the night sky, and reached maximum brightness around the beginning of March.

Finally, he decided that comets must move in straight lines.

The comet moved over three times as far awav from the sun as Saturn ever moved.

They point out that the comet will soon be moving rapidly away from Earth and would be very difficult for a rocket to overtake.

To the taller guest, he said, "A comet that must have splintered when you tried moving it out of our way."

The solar system was still murky; comets moved through the viewpoint like white bullets.

He was able to confirm the discovery the next morning, having seen that the comet had moved north.