Hubble points via gyroscopes, not thrusters! But they are slow, so that's part of why you need to schedule things well. YouTube video explaining how it points:

Hubble points via gyroscopes, not thrusters! But they are slow, so that's part of why you need to schedule things well. YouTube video explaining how it points: https://www.youtube.com/watch?v=qEZI9DxIQss https://www.youtube.com/watch?v=qEZI9DxIQss Also, I don't think it needs to change orbital parameters at all for its operation. Station-keeping yea, but I don't think it needs to burn more fuel because of pointing at things.