yes another planet. only thing i can think of? otherwise perhaps another country but most of them wont let you become a resident because of the felony. unlesss you are rich......The answer is,...
Too much is unknown of the circumstances to formulate an answer (e.g.: the gravity of your offense - the conditions of your release - the citizenship of either you or your spouse - UK law regarding...
The US doesn't have any prohibition against it, however consider the fact that the the British authorities may choose to bar you from entering the country. Check with British Consulate or Embassy.