I loved this. Fantastic presentation. Beautiful art, good choice of mellow music, the radio soothingly conveying astronomical facts is genius, and the puzzle gameplay of searching for star clusters and assessing whether they might fit any of the desired patterns is creative, not to mention potentially educational as well.
It would be cool to tie the radio messages to whatever constellation you are trying to complete or have just completed, if you didn't do that already. I wanted more information about the specific constellation I was trying to connect, like its name, haha.
I think this explores the part of the theme about "what does it mean for things to be joined together?" very well. I'm not sure if it really gets at the other part, i.e. "what does it mean for that connection to break?"
Overall, very nice job—a soothing play that really stands out.