NASA scientists have finally uncovered why asteroid Bennu loses heat so quickly despite being covered in massive boulders. Samples returned to Earth reveal that its rocks are filled with hidden cracks, solving a mystery that has puzzled researchers for years.
A NASA team has solved the age-old riddle of the asteroid Bennu by finding out the reason for the surprisingly rapid cooling of its surface. Examination of the specimens using computed tomography revealed a unique porosity and network of cracks in the rock.