On the fiery Io, the innermost and third-largest of Jupiter’s four Galilean moons, Juno's observations have provided more insights about its incessant volcanic activity.

And when Io is closer to Jupiter, it experiences a stronger gravitational pull from the gas giant than when it is farther away. The study authors figured that Jupiter’s gravity must therefore be ...

Jupiter moon of Io is famed for its volcanoes. NASA just spotted the most powerful one yet Not only was the hot spot larger than Earth’s Lake Superior, but it also was seen belching out ...

NASA's Juno mission revealed that Jupiter's moon, Io, the most volcanic body in our solar system, doesn't possess a global magma ocean. Instead, separate magma chambers fuel its over 400 active ...

Io does not have a shallow global magma ocean beneath its surface, counter to previous claims, suggests a paper published in Nature. Observations from NASA's Juno spacecraft, combined with all ...

Notice how Io catches up to Europa’s shadow because Io is orbiting faster and in a smaller orbit than Europa. Ganymede, Jupiter’s largest moon, undergoes a few events this month.

Juno executed its 62nd flyby of Jupiter, including a close pass of Io at an altitude of about 18,175 miles, on June 13. The next flyby is scheduled for July 16.

Some, like Europa or Enceladus, have spectacular and perhaps even habitable liquid water oceans. And then there’s Jupiter’s moon, Io. Io is the most volcanic object known to science.

Jupiter’s moon Io may have been volcanically active throughout its life. In this image of Io, taken by NASA’s Juno spacecraft in 2023, a bright volcanic plume can be seen on the left, just ...

Jupiter's moon Io is the solar system's most volcanic body thanks to a gravitational tug of war that rages below its surface. But now scientists know the violent moon has always been this way.

Jupiter’s moon Io has been continuously remodelled by volcanic eruptions for billions of years, possibly since it first formed. Io is the most volcanically active body in the solar system ...