New black-and-white pictures have emerged of 2024 YR4, the 'city killer' asteroid that has a 1-in-48 chance of smashing into the Earth and would obliterate New York if it struck the city

It measures 130 to 300 feet across, a pebble compared to the asteroid that killed the dinosaurs, which is estimated to have been six to nine miles in length. On the other hand, on Feb. 15, 2013, an object that measured just 65 feet across exploded in the skies over Chelyabinsk,