[酷图] “勇气”号接近汉弗莱岩石

此图是“勇气”号在28日使用它的航行照相机拍摄的。

PIA05466: Heading for Humphrey

This image of the rock called "Humphrey" was taken by the navigational camera on the Mars Exploration Rover Spirit during its 54th sol on Mars. The rock's name was inspired by Humphries Peak - the tallest peak in Arizona and part of the San Francisco volcanic complex. Standing approximately .6 meters (about 2 feet) tall, "Humphrey" is one of the largest blocks of what scientists believe is ejected material from one of the rover's long-term targets, the crater dubbed "Bonneville." Likely a basaltic rock, the fractures in "Humphrey" are thought to have been caused by the impact as it was hurled from the crater to its current resting place. Scientists are eager to investigate ejecta rocks, as they give a glimpse of the composition of materials that lie beneath the martian surface. Spirit's engineering and science teams are preparing to brush and then grind "Humphrey" with Spirit's rock abrasion tool. The hope is to remove as much dust as possible so they can examine the coating before grinding, and then study the exposed undersurface after grinding with the cameras and the miniature thermal emission spectrometer.

PIA05499: A Hole in Humphrey

This image taken by the navigation camera onboard the Mars Exploration Rover Spirit shows a hole drilled by the rover in the rock dubbed "Humphrey." Spirit ground into the rock with the rock abrasion tool located on its robotic arm on the 60th martian day, or sol, of its mission. Scientists are investigating the freshly exposed rock with the rover's suite of scientific instruments, also located on the rover's arm. Spirit is on its way to a large crater nicknamed "Bonneville".

PIA05500: Humphrey on the Inside

This image taken by the microscopic imager onboard the Mars Exploration Rover Spirit shows a close-up look at the rock dubbed "Humphrey." The image was taken after the rover drilled into the rock with its rock abrasion tool, exposing fresh rock underneath. Scientists are examining "Humphrey" for clues to its past with the rover's suite of scientific instruments, located on the rover's arm along with its rock abrasion tool. This image was taken on the 60th martian day, or sol, of Spirit's mission. The rover is on its way to a large crater nicknamed "Bonneville".

Natural or Manmade?
The circled areas in Figure 1 above represent features that scientists have identified as being either natural or induced by grinding processes. The yellow circle shows a natural mark; the green and blue circles highlights droppings thought to be left by the rover's Moessbauer spectrometer; and the red circle contains a natural indentation. The image was taken on the 60th martian day, or sol, of the rover's mission.

PIA05502: Rock Dusting Leaves "Mickey Mouse" MarkThis image taken by the navigation camera on the Mars Exploration Rover Spirit shows the rock dubbed "Humphrey" and the circular areas on the rock that were wiped off by the rover. The rover used a brush on its rock abrasion tool to clean these spots before examining them with its miniature thermal emission spectrometer. Later, the rover drilled into the rock with its rock abrasion tool, exposing fresh rock underneath

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