- Our Solar System doesn’t limit to Neptune or Pluto.
- Beyond Neptune, there is ‘KUIPER BELT’ containing ‘rocks’ (similar to asteroids) & Dwarf Planets including ‘PLUTO’.
- Beyond this, there is ‘HELIOSPHERE‘. It is a bubble-like region continuously inflated by Sun’s Solar Winds.
- Beyond this, there is ‘OORT CLOUD‘, which consists of rocks similar to Kuiper Belt. This is the boundary of solar system and mostly undiscovered. It is almost one to two light years away from the Sun.
Below is a ‘spherical model’ of our Solar System: