Kepler-37b appear as a sub-Earth, being smaller than Mercury but larger than Luna in terms of diameter. Due to her small size, she does not have an atmosphere. 
Kepler-37b appears as a gray rocky exoplanet, with black trapezium eyes and a yellow sclera in the shape of an electric bolt which produce electric charges. She wields a yellow and grey microphone, with a black outer frame supporting the head of the microphone, which also produces electric charges
she is rival with mercury