Passed my proposal defense after an hour + of grilling from my advisory committee and the peanut gallery in attendance. This step is mostly a formality as the research has been going forward anyway and is now funded by NASA. In other words, there is no turning back, pass or fail. But pass it was and a relief to have that step out of the way – finally. It should have been done a year ago, but getting everyone together at the same time is not easy.