Curiosity , and while it searches for a suitable location to test its rock drill, for the first time, it managed to use a less impressive but equally important accessory: its brush.
The brush is designed to help clean up Martian dust and reveal the rocks underneath. This was just a test of the equipment. NASA doesn't want to discover anything else, but the tool has an important purpose.
First for a quick cleanup, since this way Curiosity had a better view of what's under the dust, especially when the Alpha Particle X-ray Spectrometer and the Mars Hand Lens Imager, were found at the end of Curiosity, along with the brush.
Second, it makes it possible to take a sample inside the rock without it being “contaminated” by surface dust.
See the impressive photo (Click to enlarge)
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