Episode 1 of 3
Initial Detection Attribution
- When
- 1868
- Where
- Solar eclipse observation site
The first detection of the spectral line signature is attributed to Rayet, Pogson, and Herschel, with Janssen confirming the observation.
Passages state that helium was first detected as an unknown yellow spectral line signature in sunlight during a solar eclipse in 1868 by Georges Rayet, Captain C. Pogson, and Lieutenant John Herschel. Janssen subsequently confirmed this detection.
Sources
- Helium Wikipedia, revision of 2026-10-01
Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.