WEBVTT

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Ranjit from Pune states, ever since the Shuttle disaster and the involvement of rigid polyurethane foam as an insulating material for the External Tank,

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which presumably was the cause of the disaster, I've been keen to know how this problem has been addressed.

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Well, as I mentioned, we have -- one of our biggest issues was foam coming off the tank.

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And we have modified the tank to ensure that we don't have that kind of damage.

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Foam coming off the tank did damage the wing leading edge of Columbia and did result in the accident.

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So this has been a very important area for us to go correct.

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And we have done that, both by changes to the foam as well as using the heaters.

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