What would happen if Earth were struck by another catastrophic asteroid?
While such an event would be devastating, researchers at the IBS Center for Climate Physics (ICCP) at Pusan National University in South Korea wondered specifically how Earth's climate and ecosystems might change in the aftermath of such an impact. They calculated that there is a very small chance — about 1-in-2700, or 0.037% to be exact — that asteroid Bennu, which is roughly the size of the Empire State Building, could collide with our planet in September 2182. Bennu was the target for NASA's OSIRIS-REx asteroid sampling mission, which touched down briefly on the space rock in October 2020 to gather over 4 ounces of material, and then brought that sample back to Earth for a landing in the Utah desert in September 2023.
