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Photos: Mars rover Curiosity

NASA's Mars rover Curiosity took this nighttime photo of a hole it drilled May 5 to collect soil samples. NASA said this image combines eight exposures taken after dark on May 13. The Curiosity rover set off from Earth in November 2011 and landed nearly nine months later -- 99 million miles away.

NASA's Mars rover Curiosity took this nighttime photo of a hole it drilled May 5 to collect soil samples. NASA said this image combines eight exposures taken after dark on May 13. The Curiosity rover set off from Earth in November 2011 and landed nearly nine months later -- 99 million miles away.