I love watching the dust plumes from the LRV. They're almost mesmerizing in their pure expression of aggregate ballistics. Then I contrast that with practically everything else I see in the desert where I live, where anything stronger than flatulence raises an aerosol cloud that takes minutes to dispel.
Next week I should have about 2,000 CPU cores not doing anything for a few days. Maybe a large-scale simulation and visualization would be the ticket.