The Sun has always been the center of the Universe for humanity. However, the nature, composition and lifespan of the Sun are things we've only come to understand in relatively recent times.
Universe Today
The Planet Mercury - Universe Today
A Planet Was Swallowed by a Red Giant, But it Survived - Universe Today
Mission to the Sun - Universe Today
New Ring of Dust Discovered in the Inner Solar System - Universe Today
Be Grateful the Sun Can't Produce Flares Like This - Universe Today
How Many Stars Formed Together With the Sun in Our Stellar Nebula? - Universe Today
Solar System Guide - Universe Today
Guest Post: Our Explosive Sun - Universe Today