NASA’s Curiosity Mars rover has spied a cliff wall as it explores a region on the Red Planet known as Mount Sharpa mountain 3 miles (5 kilometers) high within Mars’ Gale Crater. NASA has named the rock “Timboy Chaco”.
What is it?
Curiosity has been probing the region for months, examining rocks that mission team members call “box formations.” These geological features resembles a spider’s web seen from orbit, but up close appear as low-lying ridges and hollows carved into the Martian rock by wind and erosion.
Curiosity is currently exploring the eastern and southern “borderlands” of this region, according to one NASA statement which comes with the picture.
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Why is it amazing?
Curiosity has discovered evidence of it water once flowed through the areaand leaves behind rich mineral deposits. Over the course of Martian history, winds have blown the Red Planet’s sand away, exposing these deposits that now appear as pitted, scarred rock formations like the Timboy Chaco.
Scientists hope that detailed examinations of these rocks, which Curiosity is currently undertaking, can reveal whether evidence of microbial life left in the mineral deposits. Some of these formations have led scientists to theorize that groundwater could have been present much later in Mars’ history than we previously thought.
“Seeing boxwork this far up the mountain suggests that the water table had to be pretty high,” Tina Seeger, a Rice University mission scientist, said in a September 2025 statement from NASA’s Jet Propulsion Laboratory about Curiosity’s investigation of the region. “And that means that the water needed to sustain life could have lasted much longer than we thought, seen from orbit.”
