NASA's Fermi Gamma-ray Space Telescope unveils a surprising gamma-ray signal beyond our galaxy
Cosmologist Alexander Kashlinsky presents the unexpected finding from 13 years of telescope data
The signal aligns in direction and magnitude with cosmic particles of unknown origin
These energetic cosmic rays likely originate from sources outside our galaxy, adding to the cosmic mystery
The research initially sought a gamma-ray feature related to the cosmic microwave background (CMB)
The CMB, dating back over 13 billion years, offers insights into the universe's early stages
The discovery creates new pathways for understanding the early universe and its most energetic particles
The exact processes and sources behind the gamma rays and cosmic rays pose an intriguing cosmic puzzle