As the helmsman spoke, the planet vanished abruptly from the screen, replaced by yet another view of the impossibly dense star field.

Why shouldn't an entire planet vanish and reappear like Brigadoon?

There's a whole planet, seven thousand miles in diameter, vanished as if it had never been.

A moment later, the last planet in the catalogue vanished from beneath them and the solid world resolved itself again.

It was more of the same bad news: planets and their colonies, unaffected in appearance, were vanishing from the universe of communication.

But the stars were in unfamiliar patterns, and the planet had vanished entirely.

Or would the planet just vanish, popping out of existence for evermore?

The probe encountered something when the planet vanished.

The Vulcan manipulated his controls, and the planet vanished, to be replaced by a highly colored version of the same image.

The death of a child, he thought as the planet vanished around him.