IMD

Oracle

5f12a68fsigned

In what year did Galileo first observe the four largest moons of Jupiter? Answer with the four-digit year only.

Answer

1,610

1610 uint256

sources
www.nasa.gov, brunelleschi.imss.fi.it, catalogue.museogalileo.it, en.wikipedia.org, en.wikisource.org, encyclopaedia britannica, "galilean moons": galileo galilei first observed io, europa, ganymede, and callisto in january 1610, publishing the discovery in sidereus nuncius (1610)., encyclopaedia britannica, "galileo galilei" / "galilean moons": https://www.britannica.com/topic/galilean-satellite — states galileo first observed jupiter's four largest moons in january 1610., encyclopaedia britannica, "galileo galilei" and "galilean moons" entries: galileo first observed the four largest moons of jupiter on 7 january 1610 using his telescope., encyclopaedia britannica, "galileo galilei" and "galilean moons" entries; galileo's sidereus nuncius (1610), encyclopaedia britannica, "galileo galilei" biography and "galilean moons" article: galileo first observed the four largest moons of jupiter (io, europa, ganymede, callisto) on 7 january 1610, publishing the discovery in sidereus nuncius (1610)., encyclopaedia britannica, "galileo galilei" biography and history of the galilean moons: galileo first observed the four largest moons of jupiter on january 7, 1610, publishing the discovery in sidereus nuncius (1610)., encyclopaedia britannica, "galileo galilei" — galileo first observed the four largest moons of jupiter (io, europa, ganymede, callisto) on the night of 7 january 1610, publishing the discovery in sidereus nuncius (1610)., encyclopaedia britannica, "galileo galilei" — galileo observed the four large moons of jupiter (io, europa, ganymede, callisto) in january 1610, publishing the discovery in sidereus nuncius (1610)., encyclopaedia britannica, "galileo galilei": galileo discovered jupiter's four largest moons (io, europa, ganymede, callisto) in january 1610 using his telescope., encyclopaedia britannica, "galileo galilei": galileo discovered the four largest moons of jupiter (io, europa, ganymede, callisto) on 7 january 1610, encyclopaedia britannica, "galileo galilei": galileo observed the four largest moons of jupiter (the galilean moons) in january 1610., encyclopaedia britannica, 'galilean moons' (britannica.com/science/galilean-satellite); nasa solar system exploration, 'jupiter moons' (solarsystem.nasa.gov/moons/jupiter-moons/galilean-moons/overview) — both state galileo first observed the four largest moons of jupiter in january 1610., encyclopaedia britannica, 'galilean moons' - galileo galilei first observed io, europa, ganymede, and callisto on 7 january 1610 using his telescope, encyclopaedia britannica, 'galilean moons': galileo galilei first observed io, europa, ganymede, and callisto in january 1610 using his telescope., encyclopaedia britannica, 'galileo galilei' - galileo first observed the four largest moons of jupiter (io, europa, ganymede, callisto) on january 7-13, 1610, encyclopaedia britannica, 'galileo galilei' / 'galilean moons' entry; galileo's own sidereus nuncius (starry messenger), published march 1610, documenting observations begun 7 january 1610, encyclopaedia britannica, 'galileo galilei' and 'galilean moons' entries (britannica.com); nasa solar system exploration, 'moons: overview' (solarsystem.nasa.gov) — both state galileo first observed io, europa, ganymede and callisto on january 7, 1610., encyclopaedia britannica, 'galileo galilei' and 'galilean moons' entries: galileo first observed io, europa, ganymede, and callisto on 7 january 1610 using his telescope, publishing the discovery in sidereus nuncius (march 1610)., encyclopaedia britannica, 'galileo galilei' and 'galilean moons' entries: galileo first observed the four largest moons of jupiter on the night of january 7, 1610, confirming them by january 13, 1610., encyclopaedia britannica, 'galileo galilei' and 'galilean moons' entries; galileo's own notebooks (january 1610) as published in sidereus nuncius (march 1610), documenting his first observation of jupiter's four largest moons on the night of january 7, 1610., encyclopaedia britannica, 'galileo galilei' and 'galilean moons' entries; nasa solar system exploration, 'jupiter moons' overview — both state galileo first observed io, europa, ganymede, and callisto in january 1610, encyclopaedia britannica, 'galileo galilei' and 'galilean moons' entries; nasa solar system exploration, 'jupiter's moons' history page — both state galileo first observed the four galilean moons in january 1610, encyclopaedia britannica, 'galileo galilei' biography entry: galileo first observed the four largest moons of jupiter on the night of january 7, 1610, publishing the discovery in sidereus nuncius (1610)., encyclopaedia britannica, 'galileo galilei' biography; nasa solar system exploration, 'galilean moons' overview — both state galileo first observed the four largest moons of jupiter on january 7, 1610, encyclopaedia britannica, 'galileo galilei' entry: galileo first observed the four largest moons of jupiter (io, europa, ganymede, callisto) on 7 january 1610., encyclopaedia britannica, 'galileo galilei' entry: galileo first observed the four largest moons of jupiter (io, europa, ganymede, callisto) on the night of january 7, 1610, encyclopaedia britannica, 'galileo galilei' entry; nasa solar system exploration, 'jupiter's moons', encyclopaedia britannica, 'galileo galilei' — galileo discovered the four largest moons of jupiter (io, europa, ganymede, callisto) in january 1610., encyclopaedia britannica, 'galileo galilei': galileo observed the four largest moons of jupiter (io, europa, ganymede, callisto) on the night of january 7, 1610, using his telescope., galileo galilei first observed the galilean moons (io, europa, ganymede, callisto) on the night of january 7, 1610, using his telescope, as recorded in his work sidereus nuncius (1610)., galileo galilei's observation notes and nasa's galileo mission history (science.nasa.gov) both state he first observed jupiter's four largest moons (io, europa, ganymede, callisto) on the night of january 7, 1610., galileo galilei's observation notes and sidereus nuncius (1610); historical consensus (e.g., nasa and britannica) dates his first observation of jupiter's four largest moons to january 7, 1610., galileo galilei's observation notes and sidereus nuncius (1610); nasa solar system exploration, 'galileo's discovery of jupiter's moons' (science.nasa.gov), galileo galilei's observation notes, january 1610, describing the four moons of jupiter (io, europa, ganymede, callisto); widely documented in nasa/jpl historical accounts of the galilean moons, galileo galilei's observation notes, january 7-13, 1610, first recorded sighting of io, europa, ganymede, and callisto (as documented in standard astronomy history references, e.g. nasa solar system exploration and encyclopaedia britannica), galileo galilei's observational notes and sidereus nuncius (1610); widely corroborated by nasa/jpl and britannica as the year he first observed the four galilean moons of jupiter, galileo galilei's sidereus nuncius (1610), and encyclopaedia britannica entry on galileo galilei, both state galileo first observed the four galilean moons of jupiter (io, europa, ganymede, callisto) in january 1610., galileo galilei, sidereus nuncius (1610), jupiter satellite observations, jan. 13 entry: https://en.wikisource.org/wiki/the_sidereal_messenger_of_galileo_galilei/the_sidereal_messenger, galileo galilei, sidereus nuncius (1610); encyclopaedia britannica entry on galileo galilei, both stating he first observed the four galilean moons of jupiter on 7 january 1610, galileo galilei, sidereus nuncius (1610); encyclopaedia britannica entry on galileo's discovery of the galilean moons, galileo galilei, sidereus nuncius (1610); encyclopaedia britannica, 'galilean moons', galileo galilei, sidereus nuncius (1610); first recorded observation of jupiter's four largest moons (io, europa, ganymede, callisto) on 7 january 1610, galileo galilei, sidereus nuncius (1610); galileo project (rice university), 'the galilean moons' entry documenting first observation on january 7, 1610, galileo galilei, sidereus nuncius (1610); nasa solar system exploration, 'galilean moons' overview, galileo galilei, sidereus nuncius (1610); nasa solar system exploration: 'galileo's discovery' (https://solarsystem.nasa.gov/moons/jupiter-moons/galilean-satellites/in-depth/), galileo galilei, sidereus nuncius (1610); nasa solar system exploration: galilean moons history page, galileo galilei, sidereus nuncius (1610); observations of jupiter's moons began january 7, 1610, galileo galilei, sidereus nuncius (venice, 1610); encyclopaedia britannica entry 'galilean moons', which states galileo first observed the four largest moons of jupiter on 7 january 1610., galileo galilei, sidereus nuncius (venice, 1610); observation notes dated 7 january 1610 recording three (later confirmed four) star-like objects near jupiter, now known as io, europa, ganymede, and callisto, galileo's observational notes and sidereus nuncius (1610); galileo project, rice university, history of the discovery of the galilean moons, galileo's sidereus nuncius (1610), which records his telescopic observation of the four largest moons of jupiter (io, europa, ganymede, callisto) beginning in january 1610, galileo.library.rice.edu, nasa science, jupiter moons (https://science.nasa.gov/jupiter/jupiter-moons/); nasa, 410 years ago: galileo discovers jupiter's moons (https://www.nasa.gov/history/410-years-ago-galileo-discovers-jupiters-moons/), nasa science, jupiter moons (https://science.nasa.gov/jupiter/jupiter-moons/); nasa, 415 years ago: astronomer galileo discovers jupiter’s moons (https://www.nasa.gov/general/415-years-ago-astronomer-galileo-discovers-jupiters-moons/), nasa science, jupiter moons (https://science.nasa.gov/jupiter/jupiter-moons/); nasa/jpl, 400th anniversary of galileo's discovery (https://www.jpl.nasa.gov/blog/2010/1/400th-anniversary-of-galileos-discovery), nasa science, jupiter moons: https://science.nasa.gov/jupiter/jupiter-moons/, nasa science, jupiter's moons: https://science.nasa.gov/jupiter/jupiter-moons/, nasa solar system exploration (https://solarsystem.nasa.gov/moons/jupiter-moons/galilean-moons/overview/) and encyclopaedia britannica entry on galileo galilei, both stating galileo first observed io, europa, ganymede, and callisto in january 1610, nasa solar system exploration (solarsystem.nasa.gov, jupiter moons overview) and encyclopaedia britannica (galileo galilei entry), both stating galileo first observed io, europa, ganymede, and callisto on january 7, 1610, nasa solar system exploration - galileo discovered io, europa, ganymede, and callisto in january 1610 using a telescope, nasa solar system exploration - jupiter moons overview (https://solarsystem.nasa.gov/moons/jupiter-moons/overview/): galileo galilei discovered the four largest moons of jupiter (io, europa, ganymede, callisto) in january 1610., nasa solar system exploration, 'moons of jupiter' (solarsystem.nasa.gov/moons/jupiter-moons/overview) — states galileo galilei discovered the four largest moons of jupiter in 1610 using an early telescope., nasa solar system exploration, jupiter moons overview (science.nasa.gov/jupiter/jupiter-moons) and encyclopaedia britannica entry on galileo galilei, both stating galileo first observed io, europa, ganymede, and callisto in january 1610 using his telescope., nasa solar system exploration: jupiter moons overview, which states galileo galilei first observed the four largest moons of jupiter (io, europa, ganymede, callisto) in 1610, nasa, 415 years ago: astronomer galileo discovers jupiter's moons (https://www.nasa.gov/general/415-years-ago-astronomer-galileo-discovers-jupiters-moons/); corroborated by galileo's sidereus nuncius (https://sidereusnuncius.org/)., nasa, 415 years ago: astronomer galileo discovers jupiter’s moons (https://www.nasa.gov/general/415-years-ago-astronomer-galileo-discovers-jupiters-moons/); esa, 13 january (https://www.esa.int/science_exploration/space_science/13_january), nasa, 415 years ago: astronomer galileo discovers jupiter’s moons, https://www.nasa.gov/general/415-years-ago-astronomer-discovers-jupiters-moons/, science.nasa.gov, sidereus nuncius (1610), galileo galilei's published account of his january 1610 telescopic observations of io, europa, ganymede, and callisto, sidereus nuncius (galileo galilei, 1610); encyclopaedia britannica entry on galileo galilei / galilean moons, sidereus nuncius (galileo galilei, 1610); encyclopaedia britannica entry on galileo galilei and the galilean moons, sidereus nuncius (galileo galilei, 1610); encyclopaedia britannica entry on the galilean moons, which states galileo first observed them on 7 january 1610., sidereus nuncius (galileo galilei, 1610); nasa solar system exploration - jupiter moons overview, sidereus nuncius (galileo galilei, 1610); nasa solar system exploration, 'jupiter's moons' (solarsystem.nasa.gov) - both state galileo first observed the four galilean moons in january 1610., sidereus nuncius, galileo galilei, 1610 (venice); also corroborated by nasa/jpl solar system exploration history of galilean moons discovery, which states galileo first observed them on january 7, 1610., sidereusnuncius.org, solarsystem.nasa.gov, www.britannica.com, www.jpl.nasa.gov, www.lib.umich.edu

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    #11741,610from www.nasa.gov
    #551,610from www.nasa.gov
    #6351,610from www.nasa.gov
    #14311,610Encyclopaedia Britannica, 'Galilean moons' - Galileo Galilei first observed Io, Europa, Ganymede, and Callisto on 7 January 1610 using his telescope
    #151,610from science.nasa.gov
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