The Earth is only a speck of dust in the grand scale of the universe. There are stars that would even dwarf our Sun. If you thought that Aldebaran was huge, wait until you see supergiant or hypergiant stars like Betelgeuse, Antares or VV Cephei!
This is a fairly old picture of the Sun since it has been taken on September 14, 1997 by the space-based SOHO observatory. It represents a massive solar eruption. Such a phenomenon occurs when magnetic fields arching from the solar surface twist and trap ionized gas, suspending it in huge looping structures, often expelling it into space. Occasionally that huge amount of solar plasma is ejected in the direction of Earth.