My apologies.
As every schoolboy knows, The California Science Center is in Los Angeles, not San Francisco.
Mea culpa
Well they move around a bit...back in 2011 when I was in the states
The Discovery had just retired, and was probably being prepared for Udvar Hazy.
I saw the Endeavour on the launch pad in May 2011, supposed to watch its last mission STS134 but it was delayed for a couple of weeks.
The Enterprise was at Udvar Hazy...guess they wanted a "real" one that had been to space.
Atlantis was doing the last ever shuttle mission STS135 shortly.
There was not one on the Intrepid, the Concorde was its highlight.
There was also a mockup training type one at Houston Mission Control.
Hard to believe NASA went from them to Elon Musk....
.
