Hera: first rendez-vous with a binary asteroid and full characterization of the NASA DART impact outcome by ESA

Hera will be the first mission to fully characterize the moon of a binary, which is also the smallest asteroid visited so far (165 meters in diameter), including its internal structure. It will also measure in detail the outcome of the NASA DART impact that will occur in 2022, in a regime where no modeling is able to make a direct prediction yet.