Planet smallest known planet is PSR B1257+12A, one of the first extrasolar planets discovered, which was found in 1992 in orbit around a pulsar. Its mass is roughly half that of the planet Mercury. The smallest known planet orbiting a main-sequence star other than the Sun is Kepler-37b, with a mass (and radius) slightly higher than that of the Moon. Every planet began its existence in an entirely fluid state; in early formation, the denser, heavier materials sank to the centre, leaving the lighter materials near the surface. Each therefore has a differentiated interior consisting of a dense planetary core surrounded
Don't Bite the Sun Don't Bite the Sun Don't Bite the Sun is a 1976 science fiction novel by Tanith Lee set in a utopian world which the main character comes to reject. The main character and her friends are wild, crazy "Jang" teenagers whose lifestyle is full of reckless behaviour, promiscuous sex, repeated suicide (on dying they are reborn), and a constant search for thrills. Over the course of the story, the nameless narrator fails to relate to her seven Jang friends but finds herself, feels emotion, and learns love. On a desert planet in the distant future, humanity inhabits three domed utopian