Wouldn't the gravitational pull of this planet be massive due to it's high density? I'd wager internally it is probably molten due to sheer density and pressure and then the core is a solid ultra dense ball of material. Just my conjecture though.
Most likely he just didn't want to return to be disceplined and likely face a dishonorable discharge. Seems like he was having issues in Korea, according to the article at least.
I have been really searching for an immersive FPS space sim centered on survival and building. Yes, I know space engineers exists and I've pumped many hours into it, but it just doesn't satisfy this specific itch I have. One of the main mechanics I would like is you have to salvage derelicts for parts to cobble together a working ship where you can eventually work your way up to manufacturing new parts to build ships. Think of it almost like Rust + Space engineers + ship breaker in a way. I've wanted this for so long I started learning have development to try and make it come true!