Last July, the Earth survived a 100-meter-sized Asteroid. Named 2019 OK, the asteroid passed through planet Earth at a distance of 40,400 miles.
Although the distance sounds far, in the world of astronomy is relatively close. According to the BuzzFeed News report, NASA found out that 100-meter-sized asteroid just a few hours before it headed for Earth.
In one e-mail, obtained by BuzzFeed News via a Freedom of Information request, a NASA employee acknowledged the asteroid was “sneaking through the net.” While other e-mails, warn of a large asteroid that will cross the Earth.
How NASA responded to this 100-meter-sized Asteroid
“Because there may be media coverage tomorrow, I warn you that in about 30 minutes an asteroid measuring 57-130 meters will pass Earth with a distance of only 0.19 lunar distances (about 48,000 miles). 2019 OK was seen about 24 hours ago,” Planetary said NASA Defense Officer Lindley Johnson in an e-mail quoted from Mirror on Saturday (9/21/2019).
Asteroid 2019 OK was discovered by an observatory in Brazil, which warns NASA. Research reveals that if the asteroid 2019 OK hit Earth, then an area of 50 miles could be destroyed.
In an e-mail sent two days after the asteroid passed, Paul Chodas, The Manager of the Center for Near-Earth Object Studies at NASA wrote, this object slipped through a series of their fishing nets.
So far it has not been explained about how NASA, that monitors the sky for asteroids continuously, skips or escapes from large space rocks.
“Ground-based telescopes alone have limitations. For example, they can only survey the sky at night and are bright. Based on estimated population statistics, about two-thirds of (near-Earth objects) larger than 460 feet remains to be found,” NASA said on its website.