Science
Why The ‘Happy Face Crater’ on Mars Is Happier Than Ever – ScienceAlert
Who has an even bigger grin than ten years ago? This goofy-looking crater on Mars.
Who has an even bigger grin than ten years ago? This goofy-looking crater on Mars.
These two images were taken by the HiRISE camera (High Resolution Imaging Science Experiment) on board the Mars Reconnaissance Orbiter and show how Mars’ surface is changing over time in this case, due to thermal erosion.
The first of these images was taken in 2011 and the other in December of 2020, at roughly the same season, and show a few different changes. There are color variations that are due to different amounts…
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