Hello! Today I'm going to discuss the stages of a sun's life. A sun is a star, and like all stars, it goes through several stages during its lifetime. The first stage is the protostar stage. This is when the star is still forming from a cloud of gas and dust. During this stage, the star begins to heat up as it contracts under its own gravity. The second stage is the main sequence stage. This is when the star has reached its full size and has begun to burn hydrogen in its core. This stage can last for billions of years, depending on the size of the star. The third stage is the red giant phase. During this phase, the star has exhausted its supply of hydrogen and begins to burn helium in its core instead. The star expands in size and becomes much brighter than before. The fourth stage is the white dwarf phase. During this phase, the star has exhausted all of its fuel and begins to cool down slowly over time. Eventually, it will become a cold, dark object known as a black dwarf. Finally, there is the supernova phase. This occurs when a massive star runs out of fuel and collapses under its own gravity, resulting in an explosion that can outshine an entire galaxy for weeks or months at a time! So those are the stages of a sun's life: protostar, main sequence, red giant, white dwarf, and supernova! I hope this information was helpful!