By Jonathan Amos
Science correspondent, BBC News

The US space agency's Curiosity Mars rover has drilled another hole on the Red Planet.

It is almost a year since the robot last turned the power tool in the ground.

The vehicle has since travelled more than 5km (three miles) as it heads towards the mission's primary target - the foothills of the huge mountain that dominates Mars’ Gale crater.

The rock drill was spun at a scientific waypoint known as "The Kimberley".

New pictures sent back to Earth on Wednesday, taken by the rover’s Mahli “hand lens”, show a sharply defined hole surrounded by a pile of grey powder.
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more: http://www.bbc.com/news/science-environment-27217117