Thermosphere gas and the ionospheric plasma. The International Space Station orbits the Earth within the middle of the thermosphere, between . It is convenient to separate the atmospheric regions according to the two temperature minima at about 12 km altitude (the tropopause) and at about 85 km (the mesopause) (Figure 1). The thermosphere (or the upper atmosphere) is the height region above 85 km, while the region between the tropopause and the mesopause is the middle atmosphere (stratosphere and mesosphere) where absorption of solar UV radiation generates the temperature maximum near 45 km altitude and causes the ozone layer. The density
Captain Video: Master of the Stratosphere all wear uniforms that look like those of the Video Rangers of 1951. In any case, the hero in "The Lost Planet" is a newspaper reporter named Rex Barrow, also played by Judd Holdren. As in the "Captain Video" serial, there is also an evil earth scientist, Dr. Grood (Michael Fox), in cahoots with Reckov of the Lost Planet. "Captain Video: Master of the Stratosphere" was very successful when first released to theaters, and kept playing long after other serials had been retired to the vaults. It is one of only two serials that Columbia reissued three times (in 1958,