In order to answer that, we would need to measure the mass of every star.
Since there are billions of galaxies, with billions of stars in each galaxy, the
task isn't finished yet. But we're on it, and we'll get back to you.
It was the Death Star.
A star is a massive collection of gas in space, that emits large amounts of energy.
Look in the link below for a table of the most massive stars.
Within a binary star system, the most massive star is called the primary star, whereas the least massive star is called the secondary star. See related question.
No. The most massive stars have the shortest lifespans.
It varies, depending on the stage of the star's development.
See related question
its not a massive or a dwarf star
A massive collapsed star is a dead star.
its a blue color
No. Only the most massive stars explode.
The explosion that broke apart a massive star billions of years ago is known as a supernova. Supernovae are some of the most energetic events in the universe, releasing a tremendous amount of energy and sending shockwaves and new elements into space.