SpaceX will launch Europe's Hera asteroid probe on Oct. 7: Watch it live Space.comEuropean space mission to examine Nasa asteroid impact site The GuardianEarth’s first-ever planetary defense test is nearing its end Yahoo! VoicesESA's Hera spacecraft set for asteroid 'crime scene investigation' Phys.orgA spaceship punched an asteroid — we’re about to learn what came next Nature.com