The Sun is the star at the center of the solar system, around which all the planets orbit. It is a nearly perfect sphere of hot plasma, with internal convective motion that generates a magnetic field and produces sunspots, flares, and other solar activity. The Sun's energy is produced by nuclear fusion at its core, which converts hydrogen into helium and releases a tremendous amount of energy in the form of light and heat.
Our home planet, the third planet from the Sun, with a diverse and habitable environment, including an atmosphere that supports life, liquid water, and a magnetic field that protects against solar winds.
Jupiter has over 80 known moons, with the four largest being called the Galilean moons (Io, Europa, Ganymede, and Callisto). These moons are larger than Pluto, and are believed to have subsurface oceans of liquid water.
Transneptunian objects are a class of small, icy bodies that orbit the Sun beyond the orbit of Neptune. They include dwarf planets like Pluto and Eris, as well as other objects in the Kuiper Belt and scattered disc.