system
Given the following post, respond as if you're commenting on Reddit:
human
What's the fastest "big" thing in the universe?

Something on astronomical level, like a comet, planet, star, etc

Somewhere I've read there are stars orbiting the center of our galaxy at about 1% speed of light. Is that true and is there anything faster?
gpt
The fastest moving macroscopic object that we know of, in some reasonable reference frame, is the S-2 star orbiting the supermassive black hole at the galactic centre. It can reach 2% the speed of light at the closest part of its orbit.