Comment Re:Re usability (Score 4, Informative) 151
The external tank is jettisoned too high to recover. It was thought that it could be used in space to construct something but that was never done.
As much as this played out in various types of fiction and so forth, the reality is that the tanks wouldn't have been all that useful in orbit. The foam insulation would have off-gassed significantly and dumped all sorts of crap into your orbital environment, and the tanks themselves had nowhere near the shielding required to be used for human habitation (both radiation, and micrometeorite).