Thepredicted impact region for 2021 PDC on Day 2 of a NASA-led asteroid-impact simulation. NASA/JPL But they concluded that such missions wouldn't be able to get off the ground in the short
AProbabilistic Asteroid Impact Risk Model: Assessment of Sub-300 m Impacts. A Fragment-Cloud Model for Asteroid Breakup and Atmospheric EnergyLongterm numerical simulations indicate that these transitions will recur over hundreds of thousands or even millions of years 9,10,12.This can be contrasted with Earth’s first-known recurrent
Theasteroid impact (illustration) produced the Chicxulub crater in what is now Mexico. Credit: Mark Garlick/Science Photo Library. Dust might have been responsible for the deadly dinosaur-killing