The Spirit rover amazes me. As mentioned on the latest update to the Mars Exploration Rover web site, it’s been hit by yet another cleaning event, resulting in another 30% increase in power generation levels, to a whopping 652 watt-hours. That’s the highest it’s been in years!
On the down side, the rover is currently stuck in soft sand, and may also be hung up on some rocks. There’s a real possibility it may never move again because of this. That would be an unfortunate twist of irony, given the new longevity afforded by the power boost it’s received.
Still, Spirit and its twin, Opportunity, are a testament to human ingenuity, and it’s been a thrilling ride!