* Stellar Nucleosynthesis: The vast majority of the atoms that make up our bodies, the Earth, and even the Sun itself were forged in the cores of stars long before our Sun was born. This process is called stellar nucleosynthesis.

* The Sun's Formation: The Sun formed from a cloud of gas and dust that contained these pre-existing atoms. This cloud itself was a remnant of older stars that had lived and died, scattering their atoms into space.

* Hydrogen & Helium: While the Sun continues to fuse hydrogen into helium, it only accounts for a small portion of the atoms it contains. The bulk of the Sun's mass is made up of hydrogen and helium formed in the Big Bang.

Therefore, the atoms around us are mostly remnants of older stars, making them older than our Sun.