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Originally Posted by Moontanman

I wan t to ask a question i hope is on topic.

If the sun is producing positrons via hydrogen fusion they must be produced near the core. Assuming this how would they manage to travel through the dense matter of the sun with out annihilating electrons and disappearing? How could they make it to the surface?

That's a good question. With a little googling, I came up with the following which answers your question.

We treat in detail positron production from the decay of radioactive nuclei produced in nuclear reactions of accelerated 3He. Because of their large cross sections and low threshold energies, these reactions can significantly contribute to positron production in solar flares with accelerated-particle compositions enriched in 3He. The addition of these 3He reactions extends earlier calculations of positron production by accelerated protons and α-particles. 3He reactions not only add significantly to the total positron yield in flares, but can also yield a positron depth distribution that peaks higher in the solar atmosphere. We discuss the impact these reactions have on the analysis of the annihilation line observed with RHESSI from the 2002 July 23 flare. A significant contribution from 3He reactions expands the utility of the annihilation line as a sensitive tool for investigating the structure of the flaring solar atmosphere.

Kozlovsky, Murphy, & Share, Positron-Emitter Production in Solar Flares