Sinus Fidei – what is that? A type of sinus infection?
No. It’s actually the name of a lunar mare in the Terra Nivium region of the moon. It means “bay of faith” in Latin and it’s actually pronounced see-nǔs fee-day.

Okay, so why that name?
I chose Sinus Fidei in honour of my friends. They have faith that I will actually get my ideas and stories up. ^^;

Well, won't you get them up?
To be perfectly honest... I have no idea. XD;