In the upper part of the chromosphere helium becomes partially ionized.

They are ionized or excited by the collision of particles precipitated into the atmosphere.

The ionosphere is the inner edge of the magnetosphere and is the part of the atmosphere that is ionized by solar radiation.

Her work resulted from data collected by the Explorer 33 spacecraftThe solar wind and magnetosphere consist of plasma (ionized gas), which conducts electricity.

The color is believed to be due to a set of blue and near ultraviolet emission lines from neutral and ionized molecular nitrogen.

There is no empirical evidence to support these claims, nor the claims that drinking ionized water will have a noticeable effect on the body.

nitrogen emissions blue or red blue if the atom regains an electron after it has been ionized, red if returning to ground state from an excited state.

During the entry of a meteoroid or asteroid into the upper atmosphere, an ionization trail is created, where the molecules in the upper atmosphere are ionized by the passage of the meteor.

His discovery was contrary to the prevailing thought at the time, that the atmospheric gases were insulators (which they are to some extent, or at least not very good conductors when not ionized).

Auroras and the atmosphere Auroras result from emissions of photons in the Earth's upper atmosphere, above , from ionized nitrogen atoms regaining an electron, and oxygen atoms and nitrogen based molecules returning from an excited state to ground state.

He showed, in 1946, that the radio wave radiation from the Sun emanates from the ionized layers of its corona, and he developed a mathematical method for discriminating between thermal and nonthermal radio waves in the Milky Way.