[DOC] [TLE] moons of Jupiter - Wikipedia [PAR] The Galilean moons are the four largest moons of JupiterIo, Europa, 
Ganymede, and Callisto. ... Ganymede is the largest moon in the Solar System, 
and is even bigger than the planet ... 1610, Galileo wrote a letter containing the 
first mention of Jupiter's moons. ... In 1609, Cosimo became Grand Duke Cosimo 
II of Tuscany. [DOC] [TLE] Titan (moon) - Wikipedia [PAR] Titan (or Saturn VI) is the largest moon of Saturn. It is the only moon known to 
have a dense atmosphere, and the only object in space other than Earth where 
clear evidence of stable bodies of surface liquid has been found ... It is the 
second-largest moon in the Solar System, after Jupiter's moon Ganymede, and is 
larger than... [DOC] [TLE] Jupiter's Moon Io: Solar System's Most Volcanically Active Body ... [PAR] Feb 21, 2014 ... Jupiter's Moon Io: Solar System's Most Volcanically Active Body ... Galileo didn't 
even name the individual moons, but only numbered them I, II,... [DOC] [TLE] Io: Facts about Jupiter's Volcanic Moon - Space.com [PAR] Jun 16, 2016 ... Jupiter's fifth moon is the most volcanically active body in the solar system. ... 
Voyager 1 and Voyager 2 returned striking photos during their flybys. ... Io is the 
only known body in the solar system to have observed active volcanoes. ... and 
forms a doughnut-shaped cloud of radiation called a plasma torus. [DOC] [TLE] Jupiter - Moons | Planets - NASA Solar System Exploration [PAR] The planet Jupiter's four largest moons are called the Galilean satellites after 
Italian astronomer ... Io is the most volcanically active body in the solar system. ... 
Pioneers 10 and 11 (1973 to 1974) and Voyager 1 and Voyager 2 (1979) offered
... [DOC] [TLE] Scientists to Io: Your Volcanoes Are in the Wrong Place | NASA [PAR] Apr 4, 2013 ... Jupiter's moon Io is the most volcanically active world in the Solar ... published 
January 1 in Earth and Planetary Science Letters. .... This image of Charon's 
informally named Serenity Chasma was .... Prior to Pluto, the most distant solar 
system body with detected X-ray emission was Saturn's rings and disk. [DOC] [TLE] Jupiter - NASA [PAR] Jupiter, the most massive planet in our solar system -- with dozens of moons and 
an .... named for him: Io is the most volcanically active body in the solar system; ... 
be the initial letter of Zeus with a line drawn through it to indicate its abbreviation. 
... 1979: Voyager 1 and 2 discover Jupiter's faint rings, several new moons and... [DOC] [TLE] Io [PAR] Io, the innermost large moon of Jupiter, is about the same size and density as 
Earth's Moon. Io is the most volcanically active body known in the Solar System. 
... A simple 2-layer (metallic core and a silicate mantle) model suggests the core 
is .... Two of the eruption sites, called Pele and Loki, are associated with calderas. [DOC] [TLE] 1000+ images about moons of Jupiter essay on Pinterest | iOS ... [PAR] Explore Cari Knight's board "moons of Jupiter essay" on Pinterest, the world's 
catalog of ideas. ... It was named after the mythological character of Io, a priestess 
of Hera who became one of .... io, one of the most volcanically active bodies in 
the solar system ..... The 1:2:4 orbital resonance of the three inner Galilean 
moons. [DOC] [TLE] Jupiter facts, information, pictures | Encyclopedia.com articles about ... [PAR] Get information, facts, and pictures about Jupiter at Encyclopedia.com. ... Roman 
gods, and most of its twenty-eight moons are named after the god's many lovers. 
... In 1979 the spacecraft Voyager 1 and Voyager 2 passed close to Jupiter and 
its moons, making .... Io is the most volcanically active body in the solar system. [DOC] [TLE] "Waves" of Extreme Volcanoes Observed on Jupiter's Moon, Io ... [PAR] 1 day ago ... Jupiter's moon Io continues to be the most volcanically active body in the solar

Question: This 2-letter-named moon of Jupiter is the most volcanically active body in the solar system
Answer: Io