IGM
it's like an atmosphere that can block some of the sun's radiation (referring to Earth's atmosphere, while IGM refers to Intergalactic Medium)
Technical definition
the diffuse, ionized gas present in the intergalactic space between galaxies.
it's like an atmosphere that can block some of the sun's radiation (referring to Earth's atmosphere, while IGM refers to Intergalactic Medium)
the diffuse, ionized gas present in the intergalactic space between galaxies.