It's possible that there could be life in the sun. We have bacteria that grow in strange places such as thermal vents or on nuclear waste (allegedly), so why not on the sun?
Plus, according to the old Superfriends show, there were sun beings (or was it the Superman show?).
They could have developed from all the nuclear missiles thrown into from movies like Superman IV
That travel to other suns thing might be true too. People are always talking about "going towards the light" during near death events and they talk
about the tunnel being dark maybe they are traveling through suns and suddenly they are shot out hence the light at the end of the tunnel.