Rogue Collision Course and Calculate

We have three words and expressions from a headlines about this story. What are those words and expressions, please? Roy? We have rogue collision course and calculate. That's rogue collisioncourse and calculate. Let's go to that first headline then, please. Ok. So our first headline comes from space dot com, and it reads, a rogue, three ton piece rocket debris just collided with the moon. The word 'rogue' is being used as an adjective here. It spell r o g u e, and it talks about something that is behaving unexpectedly,. And the result of these rogue actions usually leads to some kind of damage.