The vast majority of the mass in our solar system is concentrated in the Sun.

Here's a breakdown:

* Sun: Accounts for over 99.8% of the total mass of the solar system.

* Planets: Make up a tiny fraction of the remaining mass, with Jupiter being the largest and most massive planet.

* Other objects: Asteroids, comets, dust, and gas contribute even less to the total mass.

So, even though we have eight planets and countless smaller objects, the Sun is truly the heavyweight champion of our solar system.