T-Rex: I have good news about astronauts shooting the sun, which we were worried about being possible the other day!

T-Rex: IT'S NOT ACTUALLY POSSIBLE.

T-Rex: Because the Earth itself is orbiting the sun at 30 km/s, and the fastest gun we've got only fires bullets at around 8 km/s, we are thusly boned! You'd need to fire a bullet in the OPPOSITE direction of the Earth to cancel out that speed, and then it would fall into the sun. But since we can't get bullets to go fast enough, any bullet fired from Earth orbit will therefore NOT hit the sun, but instead end up in orbit around it!

Utahraptor: That's good to know! But even better to know is our SOLAR SYSTEM'S escape velocity.
T-Rex: How's that?

Utahraptor: Here's the trick: 48 km/s is fast enough to get out of our solar system. And as Earth already gives us 30 km/s for free, then a properly aimed bullet at 18 km/s - a much more achievable speed - couldn't hit our sun... but it could hit OTHER suns. T-Rex, we could SHOOT THE STARS.

Banner: SHOOT FOR THE STARS
T-Rex: Even if you miss, you'll still have a tiny bullet careening randomly through space!
Off panel: That's fine!
T-Rex: Probably it's fine!