Five inches, combined, with all of the layers:
Also, the ISS cupola(s) have shutters (pictured in featured image), and Corning apparently made the glass on the shuttle.
How Thick Is The Glass in the Cupola Windows in the Space Station?
Five inches, combined, with all of the layers:
Also, the ISS cupola(s) have shutters (pictured in featured image), and Corning apparently made the glass on the shuttle.
What? How? Wonder. 