What Happens to Stars Much Heavier than the Sun?
STAGE 1: Main Sequence
Stars that are much heavier than the sun start off as hot white, blue-white or blue stars, rather than yellow stars like our sun.
They last only a short time compared to the sun. A star 20 times heavier than the sun will use up its fuel in about 8 million years. The sun takes 1000 times longer.
Very big stars that were born when dinosaurs lived on Earth have already used up their fuel and exploded. The sun has been around since long before the dinosaurs and its still here today.