Sidereal Stickers is Dr. Erin May, who is an astrophysicist by day - and sometimes by night when she's at the telescopes! Sidereal refers to a system of timekeeping that is based on the motions of the stars - the original way humans kept time. With its astronomical origin, it's a perfect choice for the name of her shop. Erin loves using her free time to craft; be it knitting, crochet, or cross stitch. Made in Massachusetts, USA.