The Curiosity rover spotted broad, shallow pits on the bedrock in Mars’ Valle Grande (on Mount Sharp). What’s unusual is that these holes lack the typical signs of known erosion processes — no resistant pebbles or objects were found inside. Scientists are now puzzled: could they result from an unusual rock property, a new erosion mechanism, or something entirely different? The team will use 3D mapping to study the pits further, hoping to unlock clues about past environmental conditions on Mars.
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