When you are baking in the sun on the beach and getting that bronze look, you are communicating with remote black holes and stars called the intergalactic solarium. This alien radiation is called extra-galactic background light and is situated well beyond the Milky Way.
Published in the Astrophysical Journal, a study has examined various sources of radiation by astronomers from the US as well as the UK.
Scientists tallied billions of intergalactic light particles that would color the skin. They discovered that when you are assaulted by sextillion photons of light per second, ten trillionth is from beyond the galaxy, and are created in the cores of stars. These photons are just small packets of energy originating from the sun and travelling through space for billions of years, before they touch human bodies.
Scientific studies are aimed at discovering the reason behind the formation of the cosmos, incompatibility of quantum physics and gravity, and the characteristics of dark matter.
Lead author and astrophysicist at University of Western Australia, Simon Driver, said that he and his colleagues are "building an empirical scaffolding as to how the universe has evolved in terms of mass and energy production."
Scientists measured the light from beyond the galaxy over a large wavelength, ranging from a fraction of a micron, which could be damaging, to millimetres, which could be harmless. But as the radiation from beyond the galaxy is so tiny, they do not harm humans.
Humans are assaulted by around 10 billion photons per second from intergalactic space, Driver said.
