Ага,вот по вашей ссылке было: "Originally, the glass was developed by Corning Glass Works, Incorporated to make railroad signal lanterns that wouldn’t break under the extreme temperatures that the signal lanterns had to endure. Later in the '60s and ‘70s, NASA used it to make windows on the capsules of the manned Gemini and Apollo missions because PYREX glass was so strong. This is the same quality product today".
Так что какая никакая связь с астрономией все-таки есть!
