On: Hayabusa2 is leaving the asteroid Ryugu and heading back to Earth

[tonetheman]

I am now worried that this day will looked back on later in history as the start of the alien wars.

[sohkamyung → tonetheman]

I doubt it. We've been crashing things into comets and asteroids before this.

Like the Deep Impact mission in 2005. [1]

[1] https://en.wikipedia.org/wiki/Deep_Impact_(spacecraft)