A Photon's Million-Year Journey From the Center of the Sun. NASA ... As our photon leaves the core and enters the radiative zone, it encounters an obstacle: densely packed protons. ... Although the corona is very sparsely populated with atoms, photons can still be scattered by dust or free electrons. read more
Once the photon leaves the photosphere, its journey will be quite boring: It will travel in a straight line until in hits something and gets absorbed. The interesting part (and maybe the one you are interested in) is what happens before it leaves the photosphere. For that, see A Photon's Journey Through the Sun. read more
The radiative zone is just beyond the core of the Sun. It gets its name from its primary method of heat transfer: the radiation of light. As our photon leaves the core and enters the radiative zone, it encounters an obstacle: densely packed protons. read more
The photons that comprise the sunlight that’s hitting you at this very moment (if you’re outside and in America) has spent the past 8 minutes, and 20 seconds traveling from the sun’s surface all the way to your windowsill (or wherever you happen to be)– a journey of a staggering 92,960,000 miles (149,600,000 km). read more