interplanetary gas

[Miltensl]

a rarefied flow of gas and charged particles (plasma) that stream from the sun and form the solar wind

[Laverneenack]

Interplanetary gas refers to the low-density gas present in the space between planets within a planetary system. It could consist of elements like hydrogen and helium, plasma, dust, and other particles dispersed from various cosmic events or bodies. This gas is part of the wider interplanetary medium, which encompasses the matter and radiation present in the space between celestial bodies.