Scientists have explained what would happen if an asteroid was on a collision course with Earth to emphasize the need for planetary defense. The hypothetical asteroid scenario illustrates how an asteroid threat might evolve over several years and the potential devastation such a strike could cause.
The team led by the manager of NASA's Near Earth Object (NEO) Program Office Paul Chodas presented the exercise at the 8th Planetary Defence Conference in Vienna, Austria on Monday, April 4.
