A massive asteroid will fly past Earth very closely on Saturday, August 21. The asteroid, named 2016 AJ193, is reportedly rushing towards the Sun in its 5.91-year orbit. NASA has classified that asteroid 2016 AJ193 as potentially hazardous as it comes close to Earth on the night of August 21. The asteroid is estimated to be just under a mile wide (1.4 km wide), which is approximately 4,500 feet in diameter. This means the huge object is bigger than Burj Khalifa in size.