- #1
ujellytek
- 35
- 2
I've been searching around the web to figure out why photons shift towards the longer wavelengths as they travel from stars and other light sources but I haven't figured out why they loose energy as they travel ( and after reading some web pages I was told that they don't even loose the energy as they travel) so essentially I'm all confused on this topic. Here are my questions. How do photons loose the energy in the red shift effect? Where does that energy lost go?