How many times has the sun exploded?

Answer 1

Never nor will it ever, our sun is too small to explode (nova or super nova) according to predominent theory in another 4 or 5 billion years it will expand into a red giant (turning earth into a cinder at the same time) then some time later as it consumes the last of its fuel become at white dwarf

Answer 2

The sun has not exploded before. It is a stable star that undergoes nuclear fusion in its core to generate energy and heat. It is expected to eventually expand into a red giant in about 5 billion years, but this is not explosive like a supernova.