Contrails, the wispy white streaks that sometimes form behind aircraft, have long been a subject of interest – sparking debates about their environmental impact, their role in climate change, and even fuelling conspiracy theories.

While the last two years have been extremely challenging for aviation, it has also given us an opportunity to find new ways of doing things without the pressure of intense traffic levels.  New technologies are advancing rapidly and the way we travel, receive goods, pilot aircraft, and manage airspace are changing as a result.