With BIT’s functionality tested, it was time to shift to major arts and crafts mode. All of BIT gets covered in some combination of insulation foam, tape, and shiny aluminized mylar. The exact proportions of each are carefully chosen to keep each part thermally happy in the stratosphere. Some of this had previously been done inside the outer frame and around the telescope, but outside the outer frame needs a lot of it before we can fly. With the arrival of Bill we reached peak team size. But we also started shrinking later in the week when Steven had to leave us. […]