Gee that's . . . not a happy thought.
The asteroid, named 2024 MK, is estimated to measure about 480 feet (146 meters) across, which is greater than the height of a 40-story building or the Great Pyramid of Giza.
More.
A sucker that size could destroy London, England:
"If [an asteroid as big as Dimorphos] were to fall on the city of
London, windows would break over the whole south east of England and the
damage in [the Greater London] area would be very extreme," Collins
said. "There would be no survivors in the center of London because of
the impact itself and also because of the severity of the air blast." ...
While asteroids of this size crossing the path of our planet are rare, astronomers estimate that 60% of near Earth asteroids larger than 140 meters are still unknown.
NASA said it came in at 152.4 meters.
European Space Agency said it came as close as 180k miles.
Talk about giving two weeks notice.
