Atmosphere of Earth the border between the atmosphere and outer space. Atmospheric effects become noticeable during atmospheric reentry of spacecraft at an altitude of around . Several layers can be distinguished in the atmosphere, based on characteristics such as temperature and composition. The study of Earth's atmosphere and its processes is called atmospheric science (aerology). Early pioneers in the field include Léon Teisserenc de Bort and Richard Assmann. The three major constituents of Earth's atmosphere are nitrogen, oxygen, and argon. Water vapor accounts for roughly 0.25% of the atmosphere by mass. The concentration of water vapor (a greenhouse gas) varies significantly from around
Atmosphere (Eloy Fritsch album) Atmosphere (Eloy Fritsch album) Atmosphere: Electronic Suite is an album by Eloy Fritsch, a keyboard player known for his work in the progressive rock group Apocalypse. As a solo artist he creates cosmic electronic music. The closest comparison would be probably Vangelis, if considering his early work, which included many analogue instruments. Nevertheless, Fritsch has found his own style within melodic Electronic music framework. The opus reveals once again Fritsch’s ecological convictions: he presently defends the virtues of the gas envelope that allow everyone to live on Earth: the Atmosphere, a theme which is carried over to the album art