It was once thought that asteroids in the main belt occasionally collided with one another, sending fragments into orbital resonance bands where they could be affected by the gravity of Jupiter or Saturn.

ECONOMIST: Celestial mechanics: A rock in a hard place | The

If you remember Rose and Poulter had a shocker on Thursday, and I thought that Monty might have split them up, which just shows I am occasionally wrong.

BBC: TV coverage

Though his thought can be slapdash and hasty, it is at least earnest, intensely argued, and occasionally thrilling in its leaps and transitions.

NEWYORKER: Off the Map