[rst]

NASA press conference ongoing: https://www.youtube.com/watch?v=AGOswKRSsHc

(Bottom line: they couldn't tell what was up with the thrusters, and didn't want to bet anyone's life on it not getting worse.)

[meroes]

Didn’t they say Teflon was coming off/bubbling and disrupting the flow of the thrusters?

[dotnet00]

Yes, permanent teflon deformation. Problem is, if the deformation observed in ground tests was permanent, why did the ones in space eventually seem to recover?

That's what's making it harder to trust the thrusters I think.

[diggan]

I understood what they were saying about the simulations as that the teflon seemed to have expanded slightly and disrupting the oxidizers input, meaning the thrusters wouldn't work as they should.