I am looking for some online info about hubble. A friend thinks hubble or a
follow up could be attached to ISS and someghhow isolated from station
operations.

I said thats impossible as normal station operations including thruster firings
and people moving about would cause photo problems, beyond which the thruster
exhaust would contanminate the optics.

Could someone point me to a good reference source to enlighten my friend,
thanks.