Aw Moon you look adorable ( ᐛ )
So whenever a big annual (or not) event happens, all the planets that are part of the event dress up in traditional garments to sorta "honor" the centuries of human and space relationships (since back in the day humans pretty much worshipped the whole thing)
So anywho, a solar eclipse is coming up, which means Sun, Moon, and Earth all have to dress up for the big event. Earth is all for it and pretty much becomes a bedazzled walking tree (pfft) while Moon hates the whole thing and would rather wear a straight jacket
And then there's Sun, who has to have Venus and Mars work together to make her a dress since she's never had to participate in any big event (she's pretty confused about it but kinda likes the dressing up part)
I absolutely love Sun's dress ;u;