Should be with America's six shuttles — Enterprise, Columbia, Challenger, Discovery, Atlantis and Endeavor.

Enterprise was "too heavy" in relative terms, given that she weighs nearly as much as Columbia did at initial roll-out. However, a weight savings was achieved by refitting the structural test article into becoming Challenger, which weighed less than her older sisters, but more than Discovery and Atlantis.

Q2: in the early days, yes. Following the cancellation of the DoD launch site at Vandenberg's SLC-6, Vandenberg's 76-wheel orbiter transporter was flown to KSC and was used to transfer the orbiters between the OPFs and VAB.

Challenger's 'low' numerical Orbital Vehicle (OV) designator came from the fact that she started life as a structural test article. STS components designated as lower than 100 were for test and evaluation and designations above 100 were intended for spaceflight.

As I said above, "Explorer" is a glorified plywood mockup.

Bzzt.

♪♬ …feelin' like a ham and mustard shake… ♫♩

Intrepid Museum staffers have "fixed" Enterprise…

Actually, "Explorer" was extensively damaged during the barge journey.

Because Reinforced Carbon-Carbon can withstand 3,000° F temperatures; fiberglass cannot.

The portside leading edge caps were returned to Enterprise. The ones they punched the hole in were from Discovery, since OV-101's fiberglass caps are stronger than the reinforced carbon-carbon used on the spaceworthy orbiters.

Enterprise's wing leading edge panels, which were used by the Columbia Accident Investigation Board, are fiberglass, not the much more fragile reinforced carbon-carbon used on the spaceworthy orbiters. They tested the foam impacts, on a test rig and were shocked to see that the panels were dislodged by the impact.

Enterprise sat outside for most of her life with NASA, following the end of the Approach and Landing Tests, from 1977-1985. Granted, most of that was at Edwards AFB.

Enterprise (OV-101) was intended to be launched into orbit, to be refit following the Approach and Landing Tests, with the necessary plumbing and thermal protection system materials, all of which were still under development during Enterprise's construction.

Hence why he's hanging out with Tommy, rather than Will Riker.

I wouldn't call SLS "nothing."

955 was the primary test aircraft, until the Air Force decided, in 1980, that it had been modified so extensively that it no longer reflected the standard fleet configuration.

That's not Captain Picard. It's Admiral Pressman.

I'm not a professional photographer.

Yes.