"The European Space Agency estimates that there have been more than 660 explosions, collisions, or anomalous events resulting in fragmentation. As it stands, there are currently more than 1.5 million space debris objects in Earth orbit.

It’s not clear what may have caused the Yaogan-50 (02) satellite to break apart, but it may have been a propulsion or battery failure, or it may have itself collided with another object or space debris."

That doesn’t mean anything. “Sometimes satellites hit things or have problems and blow up. Maybe it hit something and had a problem”.

Edit: Its a perfectly valid response to the question that was asked.