system
Given the following post, respond as if you're commenting on Reddit:
human
Is the Sun Radioactive?
gpt
The fusion in the sun produces a lot of radioactivity: positrons, gamma rays, neutrinos. The neutrinos leave quickly but the positrons and photons interact quickly with the surroundings in the solar interior. Because of its heat the sun emits a lot of thermal radiation, some of which is in the x-ray/gamma-ray end of the spectrum. It also shoots out a lot of protons and electrons as solar wind.