english: Well clearly at the beginning of the solar system, Mars and the Earth were bombarded by giant asteroids and comets, and there were ejecta from these impacts all over the place.
non_english: Keď bola Slnečná sústava ešte mladá, Obrovské asteroidy a kométy bombardovali Mars a Zem a v dôsledku ich dopadov  dookola lietala vyvrhnutá hmota.