When I was a mere beardless youth back in the 70's, I'd read from my parents' collection of Perry Rhodan stories. The eponymous Major Rhodan was the hero of a very long series of short novels by a gang of uber-prolific German hacks. It was space opera at its most operatic, with humanoid aliens and psionics and wars and you name it. Very pulpy and very fun. 

Ace Books was the original American publisher, with the publication and translation organized by the late inimitable [Forry Ackerman](http://en.wikipedia.org/wiki/Forrest_J_Ackerman). But the American publication stopped at around issue 120 or so. No, seriously, 120. [Wikipedia says](http://en.wikipedia.org/wiki/Perry_Rhodan) they're up to issue 2800 or so in Germany. 

My question, which is not entirely clear to me from online searches, **is what is the subsequent US or UK publication history since the 1970's**. Is it possible to find these things in English?

*(I know, it's a separate question as to whether finding them would be worth it. I suspect that my youthful enthusiasm for this German pulp space opera might have been the result of my youth and not the quality of the stories.)*