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Curiosity rover nearing Yellowknife Bay

Researchers are sending Curiosity to the area to use its rock-powdering drill for the first time.
The NASA Mars rover Curiosity drove 63 feet (19 meters) northeastward early Monday, December 10, approaching a step down into a slightly lower area called Yellowknife Bay where researchers intend to choose a rock to drill.

The drive was Curiosity's fourth consecutive driving day since leaving a site near an outcrop called Point Lake, where it arrived last month. These drives totaled 260 feet (79m) and brought the mission's total odometry to 0.37 mile (598m).

The route took the rover close to an outcrop called Shaler, where scientists used Curiosity's Chemistry and Camera (ChemCam) instrument and Mast Camera (Mastcam) to assess the rock's composition and observe its layering. Before departure from Point Lake, a fourth sample of dusty sand that the rover had been carrying from the Rocknest drift was ingested and analyzed by Curiosity's Sample Analysis at Mars (SAM) instrument.

Curiosity ended Monday's drive about 30 percent shorter than planned for the day when it detected a slight difference between two calculations of its tilt, not an immediate risk, but a trigger for software to halt the drive as a precaution. "The rover is traversing across terrain different from where it has driven earlier and responding differently," said Rick Welch from NASA's Jet Propulsion Laboratory in Pasadena, California. "We're making progress, though we're still in the learning phase with this rover, going a little slower on this terrain than we might wish we could."

Curiosity is approaching a lip where it will descend about 20 inches (0.5m) to Yellowknife Bay. The rover team is checking carefully for a safe way down. Yellowknife Bay is the temporary destination for first use of Curiosity's rock-powdering drill before the mission turns southwestward for driving to its main destination on the slope of Mount Sharp.

Martian-outcrop
The NASA Mars rover Curiosity used its Mast Camera (Mastcam) during the mission's 120th martian day, or sol (December 7, 2012), to record this view of a rock outcrop informally named Shaler. // Credit: NASA/JPL-Caltech/MSSS
The NASA Mars rover Curiosity drove 63 feet (19 meters) northeastward early Monday, December 10, approaching a step down into a slightly lower area called Yellowknife Bay where researchers intend to choose a rock to drill.

The drive was Curiosity's fourth consecutive driving day since leaving a site near an outcrop called Point Lake, where it arrived last month. These drives totaled 260 feet (79m) and brought the mission's total odometry to 0.37 mile (598m).

The route took the rover close to an outcrop called Shaler, where scientists used Curiosity's Chemistry and Camera (ChemCam) instrument and Mast Camera (Mastcam) to assess the rock's composition and observe its layering. Before departure from Point Lake, a fourth sample of dusty sand that the rover had been carrying from the Rocknest drift was ingested and analyzed by Curiosity's Sample Analysis at Mars (SAM) instrument.

Curiosity ended Monday's drive about 30 percent shorter than planned for the day when it detected a slight difference between two calculations of its tilt, not an immediate risk, but a trigger for software to halt the drive as a precaution. "The rover is traversing across terrain different from where it has driven earlier and responding differently," said Rick Welch from NASA's Jet Propulsion Laboratory in Pasadena, California. "We're making progress, though we're still in the learning phase with this rover, going a little slower on this terrain than we might wish we could."

Curiosity is approaching a lip where it will descend about 20 inches (0.5m) to Yellowknife Bay. The rover team is checking carefully for a safe way down. Yellowknife Bay is the temporary destination for first use of Curiosity's rock-powdering drill before the mission turns southwestward for driving to its main destination on the slope of Mount Sharp.

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