The space rock, known as “2026 AJ” and 40 feet in diameter, is hurtling towards our planet at around 20,500 miles per hour.

Asteroid 2007 FT3 was classified as a city killer before vanishing in 2007 and remaining untracked for nearly two decades.

Scientists have discovered a “record-breaking” asteroid that is nearly the size of eight football fields. The object, known ...