No mention was made by the US Air Force about the meteor that hit the earth and exploded with 2.1 kilotons of force last month.
There was a confirmation of an object of unspecified size by NASA’s Jet Propulsion Laboratory traveling at 24.4 kilometers per second and striking earth in Greenland. The location is just 43 kilometers north of an early missile warning Thule Air Base on the 25th of July 2018.
Hans Kristensen, the director of the Nuclear Information Project for the Federation of American Scientists, tweeted about the impact, but there was no report from America’s Air Force.
Mr. Kristensen argues it’s concerning there was no public warning from the US government about the incident. “Had it entered at a more perpendicular angle, it would have struck the earth with significantly greater force,” he writes on Business Insider.
Mr. Kristensen points to the example of the Chelyabinsk meteor, a 20-meter space rock that exploded in the air over Russia without warning on the 15th of February 2013.
If you looked at it from afar you could see that it was the size of a house, brighter than the sun and visible up to 100 kilometers away.
After the struck, around 1500 people were injured by glass from windows smashing or other effects of the meteor’s impact as it crashed to earth, the biggest known human toll from a space rock.
Following the 2013 incident, the International Asteroid Warning Network was established to assist governments to detect and respond to Near Earth Objects.
The event of an asteroid to enter the earth’s atmosphere is not uncommon.
A meteor has been striking the earth every 13 days over a 20-year-period, due to a study referenced by Mr. Kristensen. Most break apart upon entering the atmosphere and are “harmless.”