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First HD pictures from Mars

Nasa has released the first high-definition colour pictures of Mars sent back to Earth by the Curiosity rover. Curiosity beamed back a recorded voice message from the red planet.

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NASA: Curiosity rover's drive system working well

The Curiosity rover's drive system is working well, NASA has announced after several tests.

These included going forward about 4.5 metres (15 feet), rotating 120 degrees and then reversing about 2.5 metres (8 feet).

The mission's lead rover driver, Matt Heverly, said: "We have a fully functioning mobility system with lots of amazing exploration ahead."

Its first drive is scheduled for early September.

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