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Nasa says optimistic about Mars Opportunity rover
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WASHINGTON: There’s reason to be optimistic about Mars Opportunity rover that has been silent since June 10, after getting caught in a massive dust storm on the Red Planet that cut off solar power for the nearly 15-year-old rover, Nasa said in a statement.


According to scientists, the global dust storm is “decaying” — meaning more dust is falling out of the atmosphere than is being raised back into it. As a result, skies might soon clear enough for the solar-powered rover to recharge and attempt to “phone home.”


Studies on the state of batteries and temperatures at the location showed that they were relatively in good health before the storm, and there is not likely to be too much degradation.


Moreover, because dust storms tend to warm the environment — and the storm happened in summer — the rover should have stayed warm enough to survive, the US space agency noted.


Engineers at Nasa’s Jet Propulsion Laboratory in California are now looking for signs for recovery efforts.


According to them, Opportunity will need a tau — the veil of dust blowing around — of less than 2.0 before the solar-powered rover will be able to recharge its batteries.


The higher the tau, the less sunlight is available; the last tau measured by the rover was 10.8 on June 10. — IANS


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