Here I am talking to the lovely StarTalk team about my favourite scientific breakthrough. I was rather put on the spot to come up with my favourite breakthrough with just a few minutes warning but it was an easy decision for me. Of course the NASA Stardust mission! The mission findings completely re-wrote the history of comet and asteroid formation, and our understanding of the formation of the Solar System!
The video link needs a subscription to StarTalk All-Access content but I think it’s worth it as there’s loads of other cool stuff on the site that you can enjoy.