There's a single sunspot visible on the Earth-facing side the Sun right now.
Three Earths could fit, side-by-side, across it! Lots of activity around it, too. Look at those coronal loops! #spaceweather #TheSun If you're curious what's going on here, the Sun is basically a giant ball of charged particles (plasma), boiling from the heat of the fusion reactions at its core. As all those charged particles circulate around inside the Sun, and at its surface, they produce magnetic fields.