What does this mean?This indicates that whatever sample is collected by NASA’s probe will likely include hydrated and organic material present at the landing site — Nightingale.What does this mean?Several Asteroid Bennu’s boulders have bright veins that seem to be made of carbonate. More importantly, some of them appear close to the Nightingale crater. It means some carbonates might be present in the returned sample.This discovery has led scientists to theorise that the parent asteroid, destroyed long ago, likely had an extensive hydrothermal system, where water interacted with and altered rock.What does this mean?According to NASA, Nightingale is part of a population of young, spectrally red craters, and the sample collected by the probe will be some of the most ‘pristine material’ on the asteroid.Asteroid Bennu is covered in many colors along the visible-wavelength spectrum — much more diverse than initially anticipated. This shows how combinations of different materials were inherited from Bennu’s parent body and how some places have been exposed to space for different durations, at other points of time. What does this mean?The different types of boulders may have formed at different depths in the parent asteroid of Bennu.What does this mean?Since both the boulders are weaker than expected, neither would survive the journey through Earth’s atmosphere.“It’s therefore likely that the returned samples of asteroid Bennu will provide a missing link for scientists, as this type of material is not currently represented in meteorite collections,” NASA said in a statement.Data obtained by the OSIRIS-REx Laser Altimeter (OLA) also shows that the northern and southern hemispheres have different shapes.The southern hemisphere appears to be smoother and rounder, which the scientists believe is a result of loose material getting trapped by the region’s numerous large boulders.What does this mean?It means that there could be a hole at the centre of the asteroid. Data shows that there are pockets of higher and lower density material inside the asteroid.The hypotheses void is likely to be at least as big as a couple of football fields.In addition, the bulge at Bennu’s equator is under-dense, suggesting that Bennu’s rotation is lofting this material.