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Because Io is so close to its massive host planet, the moon is subjected to a tremendous gravitational pull as it orbits Jupiter once about every 42 hours, according to the Planetary Society.
A NASA spacecraft made its closest-ever approach to Jupiter's moon Io, coming within 930 miles of the "surface of the most volcanic world," and the space agency released new images of the flyby.
Jupiter’s third-largest moon Io is the most volcanically active world in our solar system. New radio images by the ALMA telescope array show the direct effect of this volcanic activity on the ...
Jupiter, the largest planet in our solar system, is home to a fascinating array of moons. Among its 90-plus satellites, one stands out for its extraordinary geological activity: Io.
The mutilated surface of Jupiter’s moon Io was revealed in great detail by the Juno spacecraft, which has been exploring the Jovian system since 2016 and recently pulled off the closest flyby of ...
Close flybys of Io, one of Jupiter’s moons and the most volcanically active world in our solar system, have revealed a lava lake and a towering feature called “Steeple Mountain” on the moon ...
Io is the fifth most distant moon from Jupiter, orbiting at an average distance of 262,000 miles (422,000 kilometers), and the third-largest Jovian moon, at slightly larger than Earth's moon ...
Io was discovered by Galileo Galilei in 1610. It's the innermost of Jupiter's four large moons and is tugged on hard by the huge planet, as well as its sister satellites Europa and Ganymede.
Io leaves Jupiter's shadow after 1.7 Earth days, which is 2 hours of Io's day, and the sulfur dioxide sublimates — goes straight from solid to gas — and pumps up the atmosphere once again when ...
Io, the third-largest of Jupiter's many satellites, is just a touch bigger than Earth's moon. It orbits about as close to Jupiter, on average, as our moon does to Earth.
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