Globe's sister so to speak - but while the former has been screen-printed, Blue Moon is a cyanotype. The sphere has been blue-printed into a body of white silk-threads that are sewn to two acrylic glasses.
Depending on lighting the blue varies from royal blue to a dark cyan.
Thus, this was - and is - a photo challenge too.
33cm x 33cm x 82cm (109cm including weights)
Read more about the process here.