Isn't it obvious? This second planet destroying asteroid, "from outside the solar system", is much closer than the first.
The fucking Aliens are aiming these mother fuckers at the Earth.
I would estimate 2 more attempts before they hit us dead on with the 3rd one.

"‘This Is Clearly Coming From Outside the Solar System’
The second known visitor to our cosmic neighborhood from another star is making quite an entrance."

https://www.theatlantic.com/science/archive/2019/09/interstellar-comet-oumuamua/598204/