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
Burning Like the Midnight Sun the Midnight Sun" has received some of the most positive reviews of any album in the band's career. Jeff Eibel, writing for the Spin Control column in the "Chicago Sun-Times", called The Choir's latest release "a late-career triumph," and remarked that "Midnight Sun" was the band's "second exceptional album in a row, and its best since 1990's landmark "Circle Slide"." "Christianity Today"′s Andrew Greer highlighted the band's ability to create "smooth musical clarity to contrast the murky exploration of everyday faith," while "The Phantom Tollbooth"′s Derek Walker called "Midnight Sun" a "sonic delight" and The Choir's "most cohesive, melodic and