        Twilight’s eyes glimmered at the prospect.  She levitated the book and her notes over, while Octavia patiently watched.  The unicorn began with pages of calculations explaining the star charts—information which went over the musician’s head, but Luna was nodding thoughtfully.  Her expression turned more neutral as Twilight explained Clopurnicus’ theory of stars, and became a distinct frown as she proposed that the creatures had explored their moon and other planets.