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
Last Day on Earth (The Walking Dead) 10 in his review and commented, "For all that "Last Day on Earth" was really about, and what was important about it, it went on too long. And then failed to deliver a satisfying exclamation point. Instead, we got another fake out/cliffhanger. A technique this show is absolutely over indulging in. Jeffrey Dean Morgan was terrific as Negan though." Zack Handlen of "The A.V. Club" gave the episode a C, the lowest grade given by the website for the show to date, faulting the episode for awkward, drawn-out writing and forced story arcs which couldn't maintain an atmosphere of suspense