433 Eros is the first Near-Earth asteroid (NEA) that was found. It was named after the Greek god of love, Eros (Greek Ἔρως). It is an S-type asteroid about 13 × 13 × 33 km in size, the second-biggest near-Earth asteroid (NEA) after 1036 Ganymed. It belongs to the Amors. It is the first asteroid that was known to cross inside the orbit of Mars. Eros is one of the few NEAs bigger than 10 km across. It is thought to be bigger than the asteroid that made the Chicxulub crater in the Yucatán and probably caused the extinction of the dinosaurs.