Asteroid in-situ science is another great topic of interest, quite different from my work on comets. Here we do not see fast activity driven by gas sublimation, but this does not make asteroidal surfaces boring. Indeed they can experience large changes on a geological time scale but short-time events such as impacts or landslides happen all the time and tell us a lot about the physical properties of these small bodies.
My interest lies in the physical properties of the surface and active processes that modify it.
Using data from ESA's Rosetta and NASA's Dawn missions I measured and analysed the morphology
of craters and landslides, and related this data to the geological history of the bodies and their gravity fields.
I have applied such analysis to asteroids Lutetia, Vesta, and Ryugu. I will test new concept of surface evolution an cratering physics with the AIDA project
Close view of asteroid (21) Lutetia
Northern & Southern hemispheres of (4)Vesta