The solar system is a group of celestial bodies, including the Sun and all objects that are gravitationally bound to it. These objects include:

1. The Sun: The central star of the solar system, providing light and heat.

2. Planets: There are eight recognized planets in the solar system:

   • Mercury

   • Venus

   • Earth

   • Mars

   • Jupiter

   • Saturn

   • Uranus

   • Neptune

   (Note: Pluto used to be considered the ninth planet but was reclassified as a "dwarf planet" in 2006.)

3. Moons: Many planets have natural satellites or moons, with Earth's moon being the most well-known.

4. Dwarf Planets: These include Pluto, Eris, Haumea, and others that don't clear their orbit of other debris.

5. Asteroids: Rocky objects, mostly found in the asteroid belt between Mars and Jupiter.

6. Comets: Icy bodies that, when passing close to the Sun, develop tails due to the heat.

7. Meteoroids: Smaller rocks and debris that can burn up in Earth's atmosphere, creating shooting stars.

All of these objects revolve around the Sun due to its strong gravitational pull. The solar system is part of a much larger galaxy called the Milky Way.