With the darkest days of the Martian winter now over, NASA took its Opportunity Mars Rover for a drive this week. The rover had been stationary while its solar panels lacked enough sunlight to power its batteries.
The rover's drive Tuesday was a short one: "about 12 feet northwest and downhill," according to NASA. The agency says Opportunity has driven 21.4 miles since it landed on Mars in January of 2004.
Russia's newly reinstalled President Vladimir Putin will be too busy with affairs at home to make a planned visit to the United States this month, where he was to have a high-profile tête-à-tête with President Obama and attend the G8 summit.
In his place, Prime Minister Dmitry Medvedev, who swapped places with Putin in recent elections, will go to the global economic summit.