Atmosphere of Earth and balloons, and too low to permit orbital spacecraft. The mesosphere is mainly accessed by sounding rockets and rocket-powered aircraft. The stratosphere is the second-lowest layer of Earth's atmosphere. It lies above the troposphere and is separated from it by the tropopause. This layer extends from the top of the troposphere at roughly above Earth's surface to the stratopause at an altitude of about . The atmospheric pressure at the top of the stratosphere is roughly 1/1000 the pressure at sea level. It contains the ozone layer, which is the part of Earth's atmosphere that contains relatively high concentrations of
What We Live For "we tried to take a lot of the stuff that our fans like and love about us from Oh, What a Life and take that to the next level as far as sounds go. [We] brought back some of the old instruments like mandolin and banjo, but also experimented with a lot of different sounds like vocal samples. We brought back a lot of piano [and] bigger harmonies." Lyrically, the album builds on "Oh, What a Life"s biographical themes, which followed the band's origins and journey; "What We Live For" documents the band's experiences during the present and their perspective