What If An Asteroid Hit The Earth? | Asteroid Attack | Asteroid Day Special | The Dr Binocs Show
Summary
Highlights
Asteroid impacts are scientific facts rather than science fiction, having played a key role in Earth's history, from water delivery to mass extinctions. Earth is constantly bombarded by small space debris, which usually burns up in our atmosphere.
While NASA monitors large asteroids, smaller ones the size of a football field pose a more frequent threat, potentially striking every 2,000 years and causing localized destruction within a seven-kilometer radius.
A massive 10-kilometer wide asteroid impact would trigger global disasters, including shockwaves, massive fires, and the blockage of sunlight by atmospheric debris, ultimately leading to global cooling and extinction events.
There is good news: NASA has tracked 90 percent of large near-Earth asteroids, and none are currently expected to hit. Furthermore, asteroids may have played a vital role in Earth's history by delivering minerals and water that helped kickstart life.