How stars evolve
Stars take a variety of form throughout their lives
Supergiants If the star begins life big enough, normally above ten solar masses, it will become a supergiant.
They can be thousands of times bigger than our Sun.
Main sequence stars These range from between 0.08 and 10 solar radii, with masses around 0.1 to 100-times the Sun. Our Sun is a main sequence star.
White dwarfs Stars with less than 1.4 solar masses will not end their life in a dramatic explosion, instead they leave behind a small core of electron-degenerate matter known as a white dwarf.
Neutron stars (off chart) Stars between 1.4 and three solar masses will end their life in a dramatic explosion, or supernova, leaving behind a neutron star.
Quark stars (off chart) Stars slightly too heavy to remain stable as neutron stars could potentially turn into quark stars.
When main sequence stars use up all of their fuel, the expand to become giants. Our Sun will become a
Red Giant in around 5 billion years.