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The “happy face crater” on Mars has changed right before our eyes – Sunday Vision

Who has a smile bigger than it did ten years ago? This is a crater on the surface of Mars. These two images were taken by the HiRISE (High Resolution

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Who has a smile bigger than it did ten years ago? This is a crater on the surface of Mars.
These two images were taken by the HiRISE (High Resolution Imaging Scientific Experiment) camera aboard the Mars Exploration Orbiter and show how the Martian surface changes over time – in this case, due to thermal erosion.
A smiling face crater on Mars in December 2020, as seen with a HiRISE camera on the Mars Reconnaissance Orbiter. Image Credit: NASA / JPL / U of Arizona
The first photo was taken in 2011…

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