Intergalactic Medium
Huge reservoirs of here gas spread between galaxies, a area known as the intergalactic medium. This thin substance isn't empty; it's primarily built of hydrogen and heavy hydrogen, with small amounts of larger co
Huge reservoirs of here gas spread between galaxies, a area known as the intergalactic medium. This thin substance isn't empty; it's primarily built of hydrogen and heavy hydrogen, with small amounts of larger co