What mysteries are hiding in the extra-galactic background light?

Explore the challenges of detecting light beyond the Milky Way and the secrets it holds. Delve into mysteries of extra-galactic background light, unravel cosmic enigmas, and ponder unknown phenomena in the universe. Discuss the complexities of analyzing distant sources and deciphering the universe's history through different light spectra. Engage in a lively exploration of high-frequency phenomena like gamma rays and x-rays, shedding light on the abundance of electrons and the enigmatic nature of cosmic emissions.