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 TodayESA’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 onlineESA’s Hera Is About to Fire Its Engines for 93 Minutes in a High-Stakes Asteroid Approach  The Daily Galaxy