Question: If absolute zero occurs at the sun, what will happen? Will the sun explode? Or may it be possible for the absolute zero to be negated from the sun's heat?

The Sun would not explode if it somehow reached absolute zero. Absolute zero can only occur if absolutely all the energy in atoms is removed. This means that if absolute zero was reached in the Sun, it would be reached in every part of the Sun, so all of the heat would be gone.

I should point out that we have never been able to bring anything down to absolute zero temperature in a lab, and I don’t think that it’s possible!