Originally posted by: destrekor
Originally posted by: StrangerGuy
There are very small stars that can continue shining for 1 trillion years.
and very big ones that don't even last a billion

for example, alpha Ori (Betelgeuse) will possibly go supernova in anytime from now to the next thousand years, opinions differing between different scientists. It's around 500 light years away, so it could be dead and we are just awaiting the great splash of supernova light to become visible to us. Or it hasn't even done so yet and we are awhile away. Regardless, its an incredibly large star that has lived very shortly and most scientists view it as being in the last stages of life, in its carbon burning stage of life. it's 10 million years old by the way.
also, they do have a few disputes suggesting it may live for quite a while longer than 1000 years.