Four years ago, NASA punched an asteroid. Europe's Hera probe arrives this month to inspect the wreckage – Space

Four years ago, NASA punched an asteroid. Europe’s Hera probe arrives this month to inspect the wreckage  SpaceESA’s Hera Mission Targets Binary Asteroid Pair in November  Universe TodayFinding Hera’s way: Flight Dynamics team in action  European Space AgencyESA’s Hera spacecraft gets first glimpse of target asteroid Didymos that was hit by NASA  Starlust.orgESA probe Hera to arrive at Didymos: Target asteroid pictured as a single pixel  heise online