April 29, 2024

Fiery Flyby: Juno’s Close Encounter With Jupiter’s Volcanic Moon, Io

At top and bottom right, JunoCam images taken in May 2023 of Jupiters moon Io reveal lava fields surrounding volcanoes Volund A and B appear to be growing in size. Previous NASA spacecraft imaged the very same region in 1996, bottom left, and 2007, bottom. Juno: Image information: NASA/JPL-Caltech/SwRI/ MSSS.
Introduced in 2011, the spinning, solar-powered spacecraft has actually been studying the Jovian system because 2016 and will start the third year of its extended mission on July 31.
Ios Hot Spots.
With a size of around 2,260 miles (3,640 km)– somewhat bigger than Earths moon — Io is a world in consistent torment. Not only is the most significant world in the solar system forever plucking it gravitationally, but so are Ios Galilean siblings– Europa and the biggest moon in the planetary system, Ganymede. The result is that Io is continuously stretched and squeezed, actions connected to the development of the lava seen emerging from its numerous volcanoes.
Throughout Junos last flyby of Io, which took place May 16, the JunoCam imager took a photo from 22,100 miles (35,600 kilometers) revealing a smudge at the moons Volund area, near the equator. Such smudges are smoking guns to planetary scientists.
” When I compared it to visible-light images taken of the very same location throughout Galileo and New Horizons flybys (in 1999 and 2007), I was excited to see changes at Volund, where the lava circulation field had actually expanded to another volcano and the west just north of Volund had fresh lava streams surrounding it,” said Jason Perry of the University of Arizonas HiRISE Operations Center in Tucson. “Io is known for its severe volcanic activity, however after 16 years, it is so great to see these alter close again.
NASAs Juno spacecraft flew previous Jupiters volcanic moon Io and the gas giant itself on May 16, as displayed in this rendering that counts on images from the spacecrafts JunoCam. Credit: NASA/JPL-Caltech/SwRI/ MSSS.
Constructed by the Italian Space Agency, Agenzia Spaziale Italiana, the infrared imager was able to capture 125-mile-wide (202-kilometer-wide) Loki Patera, the largest volcanic anxiety on Io. At less than 6 miles (10 kilometers) per pixel, the JIRAM data exposes what could be an active volcano.
” The information show the lava could be bubbling to the surface area in the northwest portion and developing a lava lake to the south and east,” said Alessandro Mura, co-investigator from the National Institute for Astrophysics in Rome. “Any volcanologist will inform you it is very important to determine whether a lava lake has a stable source of product from an underground chamber. These data, and those we collect on upcoming flybys, will be important to understanding the type of volcanism that is taking place at Io.”.
Young Scientists Engage Jupiter.
On July 17, Bolton and other members of the mission consulted with 49 students and early career scientists from all over Europe at the University of Rome to attend a weeklong workshop on Junos advanced information on Jupiter and its moons.
” The contributions of the European scientific and engineering neighborhoods have been so fundamental for the success of our objective,” stated Bolton. During the workshop, trainees and early profession researchers got to work with members of the Juno science group to establish some exciting clinical jobs based on our data.
More About the Mission.
The Juno objective is managed by NASAs Jet Propulsion Laboratory, a department of Caltech in Pasadena, California, with Scott J. Bolton of the Southwest Research Institute in San Antonio as the principal investigator. Lockheed Martin Space in Denver developed and runs the spacecraft. Juno becomes part of NASAs New Frontiers Program, which is managed at NASAs Marshall Space Flight Center in Huntsville, Alabama, for the firms Science Mission Directorate in Washington.

From left, Ganymede, Europa, and Io– the 3 Jovian moons that NASAs Juno mission has flown past– in addition to Jupiter are displayed in a picture illustration produced from information gathered by the spacecrafts JunoCam imager. Credit: Image information: NASA/JPL-Caltech/SwRI/ MSSS. Image processing: Kevin M. Gill (CC BY); Thomas Thomopoulos (CC BY).
The spinning, solar-powered spacecraft will take another appearance at the fiery Jovian moon on July 30.
When NASAs Juno objective flies by Jupiters intense moon Io on Sunday, July 30, the spacecraft will be making its closest technique to date, coming within a simple 13,700 miles (22,000 kilometers) of the moons surface area. Information gathered by the Italian-built JIRAM (Jovian InfraRed Auroral Mapper) and other science instruments is expected to supply a wealth of details on the hundreds of emerging volcanoes putting out molten lava and sulfurous gases all over the volcano-festooned moon.
” While JIRAM was created to look at Jupiters polar aurora, its capability to recognize heat sources is proving to be important in our hunt for active volcanos on Io,” said Juno Principal Investigator Scott Bolton of the Southwest Research Institute in San Antonio. “As we get better with each flyby, JIRAM and other instruments aboard Juno add to our library of information on the moon, permitting us to not only better willpower surface features but understand how they alter over time.”.

From left, Ganymede, Europa, and Io– the 3 Jovian moons that NASAs Juno mission has actually flown past– as well as Jupiter are shown in a picture illustration produced from information collected by the spacecrafts JunoCam imager. At top and bottom right, JunoCam images taken in May 2023 of Jupiters moon Io show lava fields surrounding volcanoes Volund A and B appear to be growing in size. Juno: Image information: NASA/JPL-Caltech/SwRI/ MSSS. Not just is the biggest planet in the solar system permanently pulling at it gravitationally, however so are Ios Galilean brother or sisters– Europa and the biggest moon in the solar system, Ganymede. These information, and those we collect on upcoming flybys, will be vital to comprehending the kind of volcanism that is taking place at Io.”.