The Naked Scientists Podcast Titans of Science: John Zarnecki
Jan 27, 2026
John Zarnecki, a space scientist and instrument designer who led the Huygens probe team, recounts a career from rocket launches in Australia to Hubble and Giotto. He shares stories about designing the Huygens surface package, the tense descent and data wait at Titan, and how missions shaped European planetary science.
AI Snips
Chapters
Transcript
Episode notes
Hands-On Rocket Beginnings
- John Zarnecki joined UCL to launch Skylark rockets from Woomera and got hands-on instrument experience in Australia.
- He was given his own Skylark rocket at 23 and learned spacecraft electronics and mechanics on the job.
Value Of Brief, Risky Observations
- Short sounding-rocket flights forced clever instrument design and quick decisions to capture limited X-ray data.
- Longer satellite observations later resolved early detections into detailed spectra.
Working On Hubble's Camera
- John moved to British Aerospace to work on the Faint Object Camera for the Large Space Telescope, later renamed Hubble.
- He noted that about 20% of Hubble's original capabilities came from European contributions.