Photons are pretty weird....

This is a little off topic from the OP, but I always thought this was mind blowing. When photons are produced in the heart of the sun, it typically takes anywhere between 10,000-200,000 years bumping around the various layers of the sun, until one day... they've escaped the sun. From that point on, they obviously travel at the speed of light (duh).

But since the closer you travel to the speed of light, the slower time is perceived....And since photons travel at the speed of light, they essentially do not experience time. They are perpetual.

Once that photon breaches the surface of the sun, it (relative to the photon) instantaneously travels billions of billions of light years in what said photon perceives as no time at all.