The phrase "atmosphere outer" is not correct and does not convey a clear meaning in written English.
It may be intended to describe something related to the outer atmosphere, but as it stands, it lacks clarity and proper structure.
Example: "The research focused on the characteristics of the outer atmosphere of the planet."
Alternatives: "outer atmosphere" or "atmospheric outer layer".
In 1963 a treaty banning nuclear weapon tests in the atmosphere, in outer space, and underwater was signed.
Its immediate purpose is to gather & report information on the exosphere - the zone lying between the earth's atmosphere and outer space.
The treaty to which more than 150 states later adhered prohibited nuclear tests or explosions in the atmosphere, in outer space, and underwater.
The first of these, the partial Nuclear Test-Ban Treaty (1963), prohibited tests of nuclear weapons in the atmosphere, in outer space, and underwater, which thus effectively confined nuclear explosions to underground sites.
With the development of rockets and the advances in electronics and other technologies in the 20th century, it became possible to send machines and animals and then people above Earth's atmosphere into outer space.
It does however still have a long way to go before space is reached by the craft - the Kármán line, which commonly represents the boundary between Earth's atmosphere and outer space, is at 328,084 feet.
High-energy subatomic particles in the form of cosmic rays continually rain down on the Earth's atmosphere from outer space, colliding with atomic nuclei and generating showers of particles that cascade toward the ground.
The target altitude was 100 km (62 miles), which is regarded as the boundary between the Earth's atmosphere and outer space.
More than 40 existing data repositories covering data from the atmosphere to outer radiation belts were measured by ground-based instruments and also satellites.
Its ionosphere separates the atmosphere from outer space and the solar wind.
