<human>:  I am researching the history of the solar system, can you help me out?
<bot>: Sure! The solar system is believed to have formed around 4.6 billion years ago and is made up of the Sun and its orbiting planets and other objects, such as asteroids and comets. The planets, in order from the Sun, are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. The dwarf planets Pluto and Ceres also orbit in the solar system.