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Potentially devastating asteroid skims by Earth almost undetected

20-Sep-2019

Key points from article :

100-metre wide space rock slipped through Nasa’s detection systems.

Asteroid "2019 OK" passed by a fifth of the distance to the moon.

Largest asteroid to pass so close to earth in the last century.

Direct hit would have created a blast wave causing localised devastation to an area roughly 50 miles across.

Brazilian observatory spotted it on 24 July just hours before its close encounter with Earth.

Originally seen on 7 July, but it was moving too slowly to be identified as a near-Earth object.

How many times this situation has happened without the asteroid being discovered at all?

Have you got your go bag ready in case of an unexpected disaster?

Mentioned in this article:

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Institute

Center for computing asteroid and comet orbits and their probability of Earth impact

Academic

Manager of the Center for Near-Earth Object Studies (CNEOS) at JPL.