How scientists find the big asteroids that can threaten Earth
Mashable VR
MAY 21, 2022
But something threatening could surprise us, like the unexpected football-field-sized asteroid that swung just 40,000 miles from Earth in 2019. The near-Earth asteroid 2019 MO as viewed and tracked by the ATLAS telescope survey in 2019. For example, in June 2019 the survey detected the 13-foot-wide asteroid 2019 MO.
98 
Let's personalize your content