Mars Rover update

A severe dust storm on Mars, raging for the fourth consecutive week, is putting Spirit and Opportunity in jeopardy. Both rovers rely on stored solar power to keep critical systems warm during the cold martian night, but dust is blotting out the sun. The temperature of Opportunity's core has dropped to minus 37 Celsius, a near-critical level, according to NASA engineers. There's no escaping the storm; it stretches all the way around the planet. From high orbit, Mars Odyssey has mapped out the atmospheric opacity. In the figure, blue denotes clear air while red is choked with dust. When will it end? No one knows.