https://www.newscientist.com/article/mg22329870-500-strangest-star-6-things-we-didnt-know-about-the-sun/

BILLIONS and billions of stars fill our galaxy. Many burn bright, destined to become supernovae, while others are dim burnouts. They come alone and in pairs; with or without planetary companions. We have searched the far reaches of the universe in the hope of understanding the stars, but ultimately everything we know is based on our sole reference point, the sun. Yet our home star remains plenty mysterious.

“It’s expected that it’s understood, because it’s right there, it’s so close and dominant in the sky,” says astrophysicist Eamon Scullion from Trinity College, Dublin, Ireland. “How are we going to understand any other aspect of space if we can’t get to grips with the nearest star?”