In a selfie taken in mid-January 2019, Mars rover Curiosity prepares to enter a new, clay-mineral-rich unit on its traverse up Mount Sharp in Gale Crater. Image: NASA/JPL-Caltech/MSSS
Curiosity finds that Martian rocks are more porous than expected - space short science news

New Curiosity Rover data analyses reveal that Mars rocks are less compacted than previously thought. New Curiosity Rover data analyses reveal that Mars rocks are less compacted than previously thought.

Curiosity measured the density of rock layers in 96-mile-wide Gale Crater with accelerometers (a better version than those used in smartphones to measure orientation and motion) while traversing the Red Planet.

When ascending Mount Sharp, gravity rose much less as expected, indicating that the rocks at lower levels of the mountain are surprisingly porous. This disproves the theory that the base of the mountain was not once buried under several kilometers of rock.

Read the full story: Arizona State University
Scientific publication: Science