Aside from what you believe if a Pulsar shot a beam of energy at our Sun, our Sun would not explode. That's gotta be on the scale of Goku's Kamehameha or more. Even if he did shoot at a star, I honestly don't think he would destroy a star simply for the fact the fusion process is out putting Trillions of Tons of massive energy every second due to the nuclear fusion taking place inside our sun. So... Ya... Sun wins. :P