On 1 March 2023, NASA’s Juno spacecraft flew by Jupiter’s moon Io, coming inside 51,500 km (32,030 miles) of the innermost and third-largest of the 4 Galilean moons.
The beautiful new photos present the most effective and closest view of probably the most volcanic moon in our Photo voltaic System because the New Horizons mission flew previous Io and the Jupiter system in 2006 on its solution to Pluto.
Cleary, Io nonetheless seems like a pizza. The mottled and colourful floor comes from the volcanic exercise, with a whole bunch of vents and calderas on the floor that create a wide range of options.
Volcanic plumes and lava flows throughout the floor present up in all kinds of colours, from crimson and yellow to orange and black. Among the lava “rivers” stretch for a whole bunch of kilometers.
In its prolonged mission, Juno has now orbited Jupiter 49 instances, and is heading in the right direction to check a number of of Jupiter’s moons.
This newest flyby of Io was the third of 9 flybys of the volcanic moon over the subsequent yr, with the primary coming in December of 2022.
An upcoming flyby subsequent yr on 3 February 2024 will come as shut as 1,500 kilometers (930 miles) from Io.
Montage of all 5 photos of Io taken by @NASAJuno‘s JunoCAM instrument through the PJ49 encounter on March 1, 2023.
Credit score: NASA / SwRI / MSSS / Jason Perry pic.twitter.com/o2G7DUASbd
— Jason Perry (@volcanopele) March 4, 2023
Jason Perry, an Io remark skilled who has labored with the Cassini, Galileo and HiRISE imaging groups said on Twitter that his first seems at these photos present some delicate modifications from the New Horizons photos.
“Floor modifications are fairly delicate however there are not less than two,” Perry wrote. “The primary is a small move from the japanese finish of East Girru. It is a [volcanic] hotspot first seen by New Horizons in the course of a mini outburst. Nonetheless lively in response to Juno JIRAM.”
The Jovian InfraRed Auroral Mapper (JIRAM) is a twin instrument, composed of an imager and a spectrometer that share the identical telescope.
Perry mentioned different information exhibits a reddening of Chors Patera, a bowl-shaped volcanic crater. “Reddish materials on Io signifies the presence of S3-S4, short-chained sulfur that must be refreshed recurrently by means of lively, high-temperature volcanism,” he defined.
Io, a World round Jupiter a number of hours in the past
Full dimension Video: https://t.co/QtOexIBOY9
Orbit (Perijove) 49@NASAJuno
Alt: 64994 to 52515 km
JNCE_2023060_49C00074>78#Space #Astronomy #Jupiter #Io
NASA/JPL-Caltech/SwRI/MSSS /AndreaLuck https://t.co/OPyD42aNzf pic.twitter.com/R7NYyhDaIA
— Andrea Luck (@andrluck) March 4, 2023
JunoCam is a high-resolution seen gentle instrument, which is definitely not a part of the spacecraft’s main scientific payload.
It was included within the mission as a public outreach digital camera, and its photos are processed by members of the general public, many who’ve been actively processing Juno’s photos because it reached Jupiter in 2016.
Nonetheless, with the plethora of JunoCam images, it is turned out that the imagery has additionally been used for science, too.
Juno’s subsequent encounter with Io might be throughout Perijove 51 on 16 Might 2023 at a distance of 35,000 kilometers.