Ten trillionths of your suntan comes from beyond our galaxy
Lie on the beach this summer for a suntan and your body will be bombarded by about sextillion photons of light per second. Melbourne, September 9: Most of the photons,…
Lie on the beach this summer for a suntan and your body will be bombarded by about sextillion photons of light per second. Melbourne, September 9: Most of the photons,…