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  2. Interstellar medium - Wikipedia

    en.wikipedia.org/wiki/Interstellar_medium

    The process of fine structure cooling is dominant in most regions of the Interstellar Medium, except regions of hot gas and regions deep in molecular clouds. It occurs most efficiently with abundant atoms having fine structure levels close to the fundamental level such as: C II and O I in the neutral medium and O II, O III, N II, N III, Ne II ...

  3. Intracluster medium - Wikipedia

    en.wikipedia.org/wiki/Intracluster_medium

    The central cooled gas can no longer support the weight of the external hot gas and the pressure gradient drives what is known as a cooling flow where the hot gas from the external regions flows slowly towards the center of the cluster. This inflow would result in regions of cold gas and thus regions of new star formation. [12]

  4. Gas - Wikipedia

    en.wikipedia.org/wiki/Gas

    Drifting smoke particles indicate the movement of the surrounding gas.. Gas is one of the four fundamental states of matter.The others are solid, liquid, and plasma. [1] A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide).

  5. Kinetic theory of gases - Wikipedia

    en.wikipedia.org/wiki/Kinetic_theory_of_gases

    From the kinetic energy formula it can be shown that =, ¯ = =, = =, where v is in m/s, T is in kelvin, and m is the mass of one molecule of gas in kg. The most probable (or mode) speed is 81.6% of the root-mean-square speed , and the mean (arithmetic mean, or average) speed ¯ is 92.1% of the rms speed (isotropic distribution of speeds).

  6. Energetic neutral atom - Wikipedia

    en.wikipedia.org/wiki/Energetic_neutral_atom

    The low, medium and high energy ranges from one author is shown in the graph [8] along with the energy ranges for the three instruments aboard the IMAGE satellite: a high energy instrument, HENA measuring 10–500 Kev energy to study Earth's ring current; a medium ENA instrument, MENA measuring 1–30 Kev to study the plasma sheet; and

  7. "The most ridiculously detailed" photo of the moon has arrived

    www.aol.com/news/most-ridiculously-detailed...

    The duo took thousands of photos to create the glowing image of Earth's lunar companion – and it does not disappoint. "The most ridiculously detailed" photo of the moon has arrived Skip to main ...

  8. Warm–hot intergalactic medium - Wikipedia

    en.wikipedia.org/wiki/Warm–hot_intergalactic...

    Computer simulation showing the distribution of warm-hot intergalactic gas. The warm–hot intergalactic medium (WHIM) is the sparse, warm-to-hot (10 5 to 10 7 K) plasma that cosmologists believe to exist in the spaces between galaxies and to contain 40–50% [1] [2] of the baryonic 'normal matter' in the universe at the current epoch. [3]

  9. Interplanetary medium - Wikipedia

    en.wikipedia.org/wiki/Interplanetary_medium

    The heliospheric current sheet results from the influence of the Sun's rotating magnetic field on the plasma in the interplanetary medium. [1]The interplanetary medium (IPM) or interplanetary space consists of the mass and energy which fills the Solar System, and through which all the larger Solar System bodies, such as planets, dwarf planets, asteroids, and comets, move.