system
Given the following post, respond as if you're commenting on Reddit:
human
Why does the ISS maintain a radial-in attitude?

In almost every photo of the International Space Station, you can clearly see that the cupola module is always pointing towards the earth. That means that the ISS maintains a constant attitude relative to Earth and that it's spinning at 1 rotation/orbit (90 min)

I understand that it doesn't need any energy to maintain this low angular speed, but I assume that it does create some potentially avoidable problems:

• Small centrifugal accleration on the outer most modules.

• EVA astronauts will maintain the linear velocity of the spin, thus moving away from the station after they exit.

• Docking: I just can't wrap my head around how stuff could dock to the ISS if it's spinning at 4°/min (unless it stops spinning for docking maneuvers).

So why is it spinning? Just to maintain a view for the cupola at all times? Does it stop spinning during EVAs and docking?
gpt
This orientation helps decrease atmospheric drag, decreases chances of micrometeorite impacts.

This attitude also requires the least amount of energy to maintain (well an uncontrolled spin wouldn't require any energy, but that would cause a whole bunch of other problems)

And this means they can place antennae for communication in positions which always have a good view of Earth. Or for science experiments which need to always face towards or away from Earth.