Here's a bit of info for you thanks to Arnold at firstname.lastname@example.org
Tannhauser is a renowned Physicist who theorized that 2 black holes revolving around a
common point will create a rift in the time/space continuum (for lack of a better word) which
theoretically will be a gateway to another part of the universe or time(?) if a ship could travel
through it. Thus the name Tannhauser Gate. His theories were the basis of Quantum Physics
(I guess his and Einstein's).