Today’s guest is the most exceptional woman you’ve never heard of. As NASA’s first female chief flight director, Holly Ridings is responsible for all of the agency’s spaceflight operations - a job they certainly don’t teach you at school. She tells Claire Cohen how she stays calm when other people’s lives are in her hands, why she uses visualisation techniques to combat imposter syndrome and whether she ever wishes she was in the capsule being propelled into space. Get 30 days' free access to The Telegraph: https://www.telegraph.co.uk/imposters | Read more from Claire Cohen: https://www.telegraph.co.uk/authors/c/ck-co/claire-cohen/ | See our Privacy Policy at https://art19.com/privacy and our California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.