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 on the future. "Go Big or Go Home", which would ultimately appear as the seventh track on the final album, was released in May 2015 as a single, after the band's last single promoting "Oh, What a Life", "Luck", was released a year previously. "Pride" also appeared on a single in December 2015, and was also solicited as a promotional single to United States adult contemporary radio thereafter. "What We Live For" was officially unveiled by the band and Island Records on March 2, 2016, with pre-orders for both a digital download and compact disc version of the album being