“10-TRILLIONTHS OF YOUR SUNTAN COMES FROM GALAXIES BEYOND THE MILKY WAY.” My first post on this blog was about how dust from the Big Bang, thirteen billion years ago, is still in our skies, causing static in our radios. Josh Hrala on the Science Alert website reports on recent research that has “accurately measured the amount of light that makes it to Earthâ€™s surface from outside of the Milky Way….” (link via Instapundit)
The radiation is referred to as extragalactic background light. At any moment, “Earth is bombarded with about 10 billion photons of intergalactic light…. but the team says it would take you trillions of years of exposure for that amount of light to harm you….”
What I marvel at is that particles can reach earth from outside the Milky Way and that we can measure how many there are.