- Start
- Dec 31, 193790% CONFIDENCEfrom the source
Sphinx Observatory Opens Atop the Jungfraujoch
- The Sphinx Observatory at 3,571 m above the Jungfraujoch, Valais, Switzerland, was completed in 1937 and is one of the highest observatories in the world[2][3]
- It grew from the Jungfrau Railways, completed in 1912 with a concession requiring support for high-altitude research, and from the Jungfraujoch Commission founded in 1922[3]
- The International Foundation was founded in 1930 under W.R. Hess and the research station inaugurated a year later; the first astronomical cupola came in 1950[3]
- Facilities include two laboratories, a weather station, terraces and astronomical and meteorological cupolas, with a 76 cm telescope, reached by an elevator tunnelled through the mountain[2]
- In 1949 nuclear emulsion plates exposed to cosmic rays there gave the first precise evidence for the charged K-meson[2]
References 387% CONFIDENCE
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]90%youtube.com/watch?v=OVysOYeYbFwyoutube.com· Posted Sep 14, 2026· Starts Dec 31, 1937 ✓· 33% of score
Happened as dated, per the source: "The Sphinx observatory ... was completed in 1937."
- [2]80%Sphinx Observatory - Wikipediaen.wikipedia.org· Added Sep 14, 2026· 33% of score
Wikipedia's infobox lists the Sphinx Observatory as "Established" in 1937, matching the pin's stored year exactly, though without further narrative detail.
- [3]90%History of the Jungfraujoch research station - HFSJGhfsjg.ch· Added Sep 14, 2026· 33% of score
The page could not be fetched, but its title identifies it as the Jungfraujoch railway operator's own official history page, the authoritative primary source for the Sphinx Observatory's 1937 completion the pin cites.[1]
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