NASA’s Mars rover Curiosity has begun drilling on the planet’s surface for the first time, paving the way for the vehicle’s initial sample-collection efforts. The rover used both percussion and rotation to bore about 2 cm (0.8 in.) into a sample in an area of vein-bearing rock called “John Klein.” This is also where Curiosity conducted earlier percussion-only testing and is where NASA plans to conduct the first set of drill-collected samples. The agency says pre-drilling observations of ...


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