"According to the 2018 White House National Near-Earth Object Preparedness Strategy and Action Plan, asteroids of 1km in diameter and above can cause damage on a global scale." via RT: An enormous 3,000-ft asteroid is set to make a close flyby of the Earth this coming Saturday at a speed which, if it hits, could produce widespread devastation across the planet. Measuring between 1,443ft and 3,248ft (440m to 990m) in diameter, the giant space rock, which is officially known as 2002 PZ39, dwarfs the Burj Khalifa, Empire State Building, the Shard in London, and even the oft-discussed, pseudo-apocalyptic Bennu asteroid. Traveling at roughly 35,567mph (57,240km/h), an object at that speed and this size would hit with the force of a major thermonuclear bomb, creating vast firestorms, earthquakes, and potentially even tsunamis depending on where exactly it hit. "We believe anything larger than one to two kilometers - one kilometer is a little more than one-half mile - could have worldwide