Scientists uncovered an asteroid that was referred to by some as a "murderer of the city" and came closer to Earth than to the Moon this week. The Washington Post told scientists they had no idea they were coming.
The asteroid 2019 OK raced to Earth at a speed of almost 24 km / s before passing by. According to NASA, it was about 75,000 kilometers from Earth on Thursday.
"It would have struck more than 30 times the energy of the atomic explosion in Hiroshima," astronomer Alan Duffy told the Sydney Morning Herald. Duffy called the zooming space rock a "city killer."
Astronomers say he is not an immediate threat, but they admitted that they had no idea that the Giant Rock approached us because it came from the direction of the sun.
This is the video of the close encounter of Asteroid 2019 OK, we've been chirping the Earth all day: https://t.co/bjT7uhQJuO pic.twitter.com/3e4UyPcdPl
– ASAS-SN (@SuperASASSN) July 25, 2019
The asteroid the size of a large boulder was only visible a few days ago.
There are 20,000 near-Earth asteroids, and occasionally they make an appearance. In 2013, one attacked Russia and injured 1,600 people.
At a conference in April, scientists from around the world were asked how they should react to a scenario in which an asteroid is big enough to believe that destroying a big city could be on the right track in just eight years To meet earth.
The likely response would be to give the asteroid a boost with spacecraft, a scientist said.
"All we have to do is change its speed a bit faster or a bit slower, so it travels either in front of or behind us as we cross Earth orbit," Dr. Lori Glaze, director of planetary research at NASA.