Cassini spots snowballs punching through one of Saturn’s rings

Six images of the mini-jets taken by Cassini between 2005 and 2008. Credit: NASA/JPL-Caltech/SSI/QMUL Objects half a mile in diameter have been spotted punching through Saturn’s outermost ring, the F ring, and leaving glittering trails as they drag icy particles behind them. Scientists are calling these trails mini-jets.

Excerpt from:
Cassini spots snowballs punching through one of Saturn’s rings