Mars Rover Takes Selfie Before Storm Hits

Enormous Dust Storm On Mars Threatens The Opportunity Rover

Opportunity's science operations have been suspended, but it is happily not the lone Mars rover.

Curiosity, which landed eight years after Opportunity in 2012, continues to weather the storm well, remaining largely unaffected by the dust.

Its batteries are nuclear powered, enabling it to continue studying the causes and effects of such storms.

Scientists don't yet know the answer. They do know that dust storms are common, especially when Mars is closest to the sun during spring and summer.

Three orbiters — equipped with cameras — also are helping scientists piece together answers about the phenomenon.

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"We have a historic number of spacecraft operating at the red planet," says Jim Watzin, director of NASA's Mars Exploration Program. "Each offers a unique look at how dust storms form and behave — knowledge that will be essential for future robotic and human missions."

In the meantime, Martian cold has also been a cause for concern for Opportunity, now in its 15th year on the planet. But NASA says, "a recent analysis of the rover's long-term survivability in Mars' extreme cold suggests Opportunity's electronics and batteries can stay warm enough to function."

Still, nobody knows when the sun's kiss will awaken Opportunity from its prolonged slumber.

While this storm is huge, Opportunity made it through an even bigger one in 2007. One difference this time around, however, is the atmospheric opacity, or tau, which is much worse now.

As NPR's Joe Palca has reported, Opportunity was designed to operate for at least 90 days, and the elderly rover has been experiencing memory problems in recent years. So it has had a good run.

But still NASA's not ready to call it quits just yet.

NASA says such storms can last weeks, or months at the longest, and it is anyone's guess when the dust will dissipate.

"The project doesn't expect to hear back from Opportunity until the skies begin to clear over the rover," NASA says of ground controllers based at NASA's Jet Propulsion Laboratory in Pasadena, Calif. "That doesn't stop them from listening for the rover every day. "


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