Scary part of this is no other observatory saw any incoming. This impact was the size of the Earth, and the size of the rock would have vaporized any of the inner planets.
“This impact was the size of the Earth, and the size of the rock would have vaporized any of the inner planets.”
More accurately, the mark left after the impact was the size of Earth.
Shoemaker-Levy left similar (or larger) marks. It wasn’t enough to “vaporize any of the inner planets”, and neither was this. Something that size would have been a major impact event on Earth though.
Yes. Good thing we have those giant comet sweepers out there, huh. It’s almost as if it were planned that way...