You might remember the chaos about a hole in the ozone layer back in the 1980s and 90s: the protective layer above the Earth protecting us from harmful UV radiation that was being stripped away.
It’s now become an environmental success story, on its way to a full recovery. But there’s a catch.
Rocket launches spew new types of gases and exhaust into the upper atmosphere, and scientists are only now beginning to unpick what this might do.
Might the hole in the ozone layer open up again from this new industry?
In this podcast, Dr Sophie Calabretto talks to Cosmos Magazine journalist Ellen Phiddian about how we overcame this environmental hurdle and the latest threat that could catapult us right back to where we started.