This was a stunning YA coming-of-age novel about astronomy loving Sarah who feels like she has spent her entire life living in her sister's shadow and decides she wants her own time in the spotlight. 
 The forbidden romance was lost on me a bit, being from the U.K, 16 and 19 isn't something that'd be a big deal over here but I put myself into the story and got where all the characters were coming from. 
 It's a narrative that everyone is familiar with and can relate to and i'll certainly be reading more from Rebecca Maizel in the future!