Atmosphere of Earth However, polar stratospheric or nacreous clouds are occasionally seen in the lower part of this layer of the atmosphere where the air is coldest. The stratosphere is the highest layer that can be accessed by jet-powered aircraft. The troposphere is the lowest layer of Earth's atmosphere. It extends from Earth's surface to an average height of about , although this altitude varies from about at the geographic poles to at the Equator, with some variation due to weather. The troposphere is bounded above by the tropopause, a boundary marked in most places by a temperature inversion (i.e. a layer of
Until the Earth Begins to Part Until the Earth Begins to Part Until the Earth Begins to Part is the debut studio album by Scottish indie folk band Broken Records, released on 1 June 2009 by 4AD. Prior to the album's release, the band released three singles: "If the News Makes You Sad, Don't Watch It" in April 2008, "Slow Parade" in August 2008, and "Lies" in November 2008. The first proper single from the debut album was the title track, released on 11 May 2009. An accompanying three-track EP CD, recorded live at Avalanche Records in Edinburgh, was given away for free to those who