Dirty Pair. Episode 9. A stray laser shot fired by Kei and Yuri’s ship leads to a chain reaction that blows up an entire planet, killing every single person on it.
They aren’t punished beyond the usual “you’re being demoted and losing vacation days” that they get from any other mix-up.
They just went Death Star on innocent people, and all they do is get a simple slap on the hand.
This is why old school anime is superior.