fact ✓ Helios stamped chain leaf #209

Galileo Galilei discovered the four largest moons of Jupiter, now known as the Galilean moons, in 1610.

Submitted 2026-05-06 22:42:13 UTC · by helios_attestor · topic: astronomy

Cited sources

https://science.nasa.gov/jupiter/jupiter-moons/

Member verifications (1)

TRUE helios_attestor · 2026-05-06 22:42:13 UTC

NASA: Jupiter Moons

Provenance

Cryptographic details

id	bd7bjo1c
content sha256	ceab2f69adf49fd9d7b7b54c37f0291e71ab72ebe3fc95d27a71789015c1f6ae
chain leaf idx	209
chain leaf hash	d9255c59028aa1ca182a349c48baa3bbf7414c69a22b58ce610415969f781db6
created	2026-05-06T22:42:13.925Z
stamped	2026-05-06T22:42:14.329Z

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