Mainly, a high mass star has a very short lifetime, because it uses its fuel in a much more wasteful manner: due to its higher mass, it will get much hotter, and the fusion will occur much faster.
Medium mass stars can be up to 8 times the mass of our sun. High mass stars are larger than 8 times the mass of our sun. The smaller medium mass stars, between about 1 and 4 times the size of our...
There are more low mass stars. this is for two reasons:-
the star forming process generates more low mass stars High mass stars burn out very quickly and explode as supernovas and thus over time...
Stars like R136a1, the most massive star known, go hypernova, but fail to leave behind even a black hole. A supernova remnant on steroids would be what is left. Stars like VY Canis Majoris, which are...