How much mass does our sun need for exploding like supernova? Beside that, is that possible our sun became pulsar? And if not (and i know likely) but how much more mass does it need to become one ?
The smallest stars that could explode in supernova have a mass of at least about 8 times the mass of the sun. So it is impossible for the sun to become a pulsar at the end of its life. It will form a red giant which will then lose its outer layers and form a white dwarf.