NASA scientists have revealed the secrets of the most volcanic body in our solar system. For 44 years, there has been a mystery about the volcanoes on Io's surface, and NASA believes it may now have an answer to how and why Jupiter's moon became so active volcanically .
The moon Io is slightly larger than our own moon and has about 400 volcanoes, according to NASA. The material ejected from these volcanic eruptions travels into space and can even be seen from Earth through large telescopes.
The intense volcanic activity of Jupiter's moon was first recognized in 1979 by scientist Linda Morabito and later studied at Jet Propulsion Laboratory , through an image taken by the Voyager 1 spacecraft.
See also: New evidence for the largest crater on the moon!
Since their discovery, scientists have wondered how volcanoes were fueled by lava beneath the surface. So they have planned new missions to learn more. The spacecraft Juno, which launched in 2011 to study Jupiter and its moons, made two very close flybys of Io in 2023 and 2024.
During these approaches, the spacecraft collected data that allowed scientists to measure Io's gravity and discover evidence of volcanoes.
Io orbits close to Jupiter, completing its elliptical orbit every 42.5 hours. Because of the shape of its orbit, the moon's distance from the planet changes, as does Jupiter's gravitational pull. This means the moon is constantly being squeezed and released like a stress ball, in a process known as tidal flexure.
"This constant bending creates enormous energy in the form of heat, which literally melts parts of Io's interior," the scientists say.
Scientists previously believed that because of this bending, Io's interior might have been home to a large magma ocean extending beneath its entire surface. However, new research on volcanoes suggests that this is not the case.
See also: New research: Can Uranus' moons support life?
"If Io had a global magma ocean, its tidal deformation signature would be much larger than a more rigid, mostly solid interior," said the expert. "So, depending on the results from Juno's detection of its gravitational field, we could tell whether a global magma ocean was hiding beneath its surface or if it was something else."
Instead, the team's data suggested that Jupiter's volcanic moon has a mostly solid interior, with each of the volcanoes on Io having its own underground chamber of flowing magma.
"'s discovery Juno that tidal forces do not always create global magma oceans prompts us to rethink what we know about Io's interior," said study lead author Ryan Park.
See also: NASA launched Europa Clipper to detect life on the moon Europa
As we continue to explore our solar system, it is clear that there are still many mysteries waiting to be revealed. However, with advances in technology and collaboration between scientists and organizations, we can look forward to many more groundbreaking discoveries in the future. The history of Io's volcanic activity is just one example of how our curiosity and determination continue to push us towards new frontiers and expand our understanding of the universe.
So let's continue to explore, wonder, and work together to unlock the secrets of our vast and wondrous world!
Source: www.livescience.com
