Atmosphere of Earth sublimated into polar-mesospheric noctilucent clouds. These are the highest clouds in the atmosphere and may be visible to the naked eye if sunlight reflects off them about an hour or two after sunset or a similar length of time before sunrise. They are most readily visible when the Sun is around 4 to 16 degrees below the horizon. Lightning-induced discharges known as transient luminous events (TLEs) occasionally form in the mesosphere above tropospheric thunderclouds. The mesosphere is also the layer where most meteors burn up upon atmospheric entrance. It is too high above Earth to be accessible to jet-powered aircraft
What We Live For made available the same day. The album's opening two tracks, "What We Live For" and "I'm Born to Run" were also made available to purchase in April 2016, on the album's page on iTunes. Supporting the album, the band embarked on a 19-date tour of the United States from March through to May 2015, performing songs appearing on the new album live, in the lead-up to its release. It was announced through the band's Facebook page that the album's release date was pushed nearly two months from their original date, saying they are "putting the finishing touches" on their album