Caroline Steel was born in London, England. The exact year is not publicly disclosed though she celebrates her birthday on 31 March. Professionally, Steel is a freelance science broadcaster and journalist.

She hosts The Engineers, a BBC World TV and BBC News series where she chairs live discussions with world-leading engineers on topics ranging from biomedical innovations to aviation and climate technology. She also presents CrowdScience and Unexpected Elements on BBC World Service radio, and Wind Down Wisdom on BBC Radio 3.

Her science communication work spans multiple platforms and formats. She is a regular contributor to BBC Radio 4’s Inside Science, discussing weekly science news from particle physics to medical breakthroughs. She also appears on The Climate Question (BBC World Service) and has been featured on The Food Programme (BBC Radio 4).

Beyond broadcasting, Steel is an experienced live event host and science demonstrator, having performed experiments on stage for clients including Google, the Royal Institution, and the BBC. Her favourite demonstrations include building a barometer using a flight of stairs and using butane flames to illustrate climate change. She has also created viral science content on social media, amassing over 20 million video views on TikTok and Instagram.