You simply could not achieve orbit nor could you achieve escape velocity on the earths orbit once in orbit from one hit with a bat, the ball would need to be traveling near 7000m/s and that is after escaping the earths atmosphere at over 100 kilometers.
the air resistance alone would simply stop it reaching further than a couple kilometers.
I am calling this one fake.
And after this horrific tragedy the Emperor made a decree Banning all forms of baseball in the galaxy, in hopes of making sure a disaster of this scale could be avoided in the future.