Welcome to the November issue.

Alongside our usual news section, the feature articles this month are themed on Materials in Harsh Environments, tackling a spectrum of challenging scenarios – the difficult climate in Very Low Earth Orbit; aggressive atmospheric aerosols ingested into aircraft turbines; protection against targeted near-field explosions; and temperature-controlled packaging for pharmaceuticals or foodstuff. The common thread for all of these is the role of testing, testing and more testing. Proving the credibility of a material, coating or component is all the more important when it comes to harsh environments, where degradation and failure could have catastrophic consequences. We hope you enjoy this issue.