Originally Posted by
Derfred
Sorry, can’t resist...
It isn’t.
It’s energy source is nuclear fusion, but (with the exception of solar flares), the sun does not emit gamma (nuclear) radiation. It emits electomagnetic radiation at many frequencies including visible light, but nuclear radiation is not one of them.
Derfred,
The whole point of the quip is that, in generic terms, virtually all like on earth depends on the great nuclear furnace in the sky.
I don't want to prolong this thread drift, but some would take issue with you that "nuclear radiation" is just gamma radiation.
Tootle pip!!