None, really

You finish a half-mile (~.69 kilometers) run along the edge of the wall of the colony. You slow down, breathing hard as your heart beats fast in your chest; sweat pouring down your face.

"Wow," you say to yourself.

"That... was impressive," you tell yourself, you were never a slouch when it came to athletics, but you ran far better than you ever have before.

You put your hand on your hips, taking a slow walk to slow your heart rate down. Looking up, you see the various lifeforms breeze across the thick atmosphere.

You begin to walk towards the main building, ready to take a shower. You enter quickly, you get yourself prepared for the day. However, something catches your eye as you exit the shower, something hanging near the trash.