Location of asteroid Apophis, the size of four football fields hurtling through space at 79,847 km/h (49,904 mph). It reached the highest ever Earth Impact Hazard category with collision risk at 2.7%, according to NASA.
Comet Halley is the only comet that can appear twice in a human lifetime. Spectacular meteor showers are visible when Earth passes through the tail twice every year. The Orionids meteor shower in October and the Eta Aquariids in May