During its close approach, the asteroid is expected to miss the planet by more than four million miles (6.7 million km).
But the asteroid is understood to be taller than the Leaning Tower of Pisa and Nelson’s Column in London, which is a good enough reason for NASA to track the space rock.
NASA’s JPL scientists estimate Asteroid AX2 measures somewhere between 104.9ft and 232.9ft (32m to 71m) in diameter.
An asteroid this big is more than three-and-a-half times as long as a bowling lane and 8.4-times longer than a London double-decker bus.
Even at the lower end of the estimate, the asteroid stands five-times taller than an average giraffe.
READ MORE: Asteroid impact will ‘WIPE OUT third of all life’ on Earth
Article source: https://www.express.co.uk/news/science/1070348/Nasa-asteroid-warning-asteroid-2019-ax2-earth-close-approach