[azhenfud]

"It could hit the ISS when it comes back."

Does that mean it could act as a harmful high velocity projectile and penetrate the ISS?

That's not good.

[RightWhale]

It will come back at the same speed it left. If it left at 2 mph, it will return at 2 mph. Actually it could come back in 45 minutes, it taking 1-1/2 hours for a complete orbit of the ISS.