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Science and Supplies Delivered to the Space Station on This Week @NASA – November 17, 2023
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Explore Webb Webb News Latest News Latest Images Webb’s Blog Awards X (offsite – login reqd) Instagram (offsite – login reqd) Facebook (offsite- login reqd) Youtube (offsite) Overview About Who is James Webb? Fact Sheet Impacts+Benefits FAQ Science Overview and Goals Early Universe Galaxies Over Time Star Lifecycle Other Worlds Observatory Overview Launch Deployment Orbit Mirrors Sunshield Instrument: NIRCam Instrument: MIRI Instrument: NIRSpec Instrument: FGS/NIRISS Optical Telescope Element Backplane Spacecraft Bus Instrument Module Multimedia About Webb Images Images Videos What is Webb Observing? 3d Webb in 3d Solar System Podcasts Webb Image Sonifications Team International Team People Of Webb More For the Media For Scientists For Educators For Fun/Learning 5 Min Read NASA’s Webb Reveals New Details, Mysteries in Jupiter’s Aurora
NASA’s James Webb Space Telescope has captured new details of the auroras on our solar system’s largest planet. The dancing lights observed on Jupiter are hundreds of times brighter than those seen on Earth. Full image below. Credits:
NASA, ESA, CSA, Jonathan Nichols (University of Leicester), Mahdi Zamani (ESA/Webb) NASA’s James Webb Space Telescope has captured new details of the auroras on our solar system’s largest planet. The dancing lights observed on Jupiter are hundreds of times brighter than those seen on Earth. With Webb’s advanced sensitivity, astronomers have studied the phenomena to better understand Jupiter’s magnetosphere.
Auroras are created when high-energy particles enter a planet’s atmosphere near its magnetic poles and collide with atoms or molecules of gas. On Earth these are known as the Northern and Southern Lights. Not only are the auroras on Jupiter huge in size, they are also hundreds of times more energetic than those in Earth’s atmosphere. Earth’s auroras are caused by solar storms — when charged particles from the Sun rain down on the upper atmosphere, energize gases, and cause them to glow in shades of red, green and purple.
Image A: Close-up Observations of Auroras on Jupiter
NASA’s James Webb Space Telescope has captured new details of the auroras on our solar system’s largest planet. The dancing lights observed on Jupiter are hundreds of times brighter than those seen on Earth.
These observations of Jupiter’s auroras, taken at a wavelength of 3.36 microns (F335M) were captured with Webb’s NIRCam (Near-Infrared Camera) on Dec. 25, 2023. Scientists found that the emission from trihydrogen cation, known as H3+, is far more variable than previously believed. H3+ is created by the impact of high energy electrons on molecular hydrogen. Because this emission shines brightly in the infrared, Webb’s instruments are well equipped to observe it. NASA, ESA, CSA, Jonathan Nichols (University of Leicester), Mahdi Zamani (ESA/Webb) Jupiter has an additional source for its auroras: The strong magnetic field of the gas giant grabs charged particles from its surroundings. This includes not only the charged particles within the solar wind but also the particles thrown into space by its orbiting moon Io, known for its numerous and large volcanoes. Io’s volcanoes spew particles that escape the moon’s gravity and orbit Jupiter. A barrage of charged particles unleashed by the Sun also reaches the planet. Jupiter’s large and powerful magnetic field captures all of the charged particles and accelerates them to tremendous speeds. These speedy particles slam into the planet’s atmosphere at high energies, which excites the gas and causes it to glow.
Image B: Pullout of Aurora Observations on Jupiter (NIRCam Image)
These observations of Jupiter’s auroras (shown on the left of the above image) at 3.35 microns (F335M) were captured with NASA’s James Webb Space Telescope’s NIRCam (Near-Infrared Camera) on Dec. 25, 2023. Scientists found that the emission from trihydrogen cation, known as H3+, is far more variable than previously believed. H3+ is created by the impact of high energy electrons on molecular hydrogen. Because this emission shines brightly in the infrared, Webb’s instruments are well equipped to observe it. The image on the right shows the planet Jupiter to indicate the location of the observed auroras, which was originally published in 2023. NASA, ESA, CSA, STScI, Ricardo Hueso (UPV), Imke de Pater (UC Berkeley), Thierry Fouchet (Observatory of Paris), Leigh Fletcher (University of Leicester), Michael H. Wong (UC Berkeley), Joseph DePasquale (STScI), Jonathan Nichols (University of Leicester), Mahdi Zamani (ESA/Webb) Now, Webb’s unique capabilities are providing new insights into the auroras on Jupiter. The telescope’s sensitivity allows astronomers to capture fast-varying auroral features. New data was captured with Webb’s NIRCam (Near-Infrared Camera) Dec. 25, 2023, by a team of scientists led by Jonathan Nichols from the University of Leicester in the United Kingdom.
“What a Christmas present it was – it just blew me away!” shared Nichols. “We wanted to see how quickly the auroras change, expecting them to fade in and out ponderously, perhaps over a quarter of an hour or so. Instead, we observed the whole auroral region fizzing and popping with light, sometimes varying by the second.”
In particular, the team studied emission from the trihydrogen cation (H3+), which can be created in auroras. They found that this emission is far more variable than previously believed. The observations will help develop scientists’ understanding of how Jupiter’s upper atmosphere is heated and cooled.
The team also uncovered some unexplained observations in their data.
“What made these observations even more special is that we also took pictures simultaneously in the ultraviolet with NASA’s Hubble Space Telescope,” added Nichols. “Bizarrely, the brightest light observed by Webb had no real counterpart in Hubble’s pictures. This has left us scratching our heads. In order to cause the combination of brightness seen by both Webb and Hubble, we need to have a combination of high quantities of very low-energy particles hitting the atmosphere, which was previously thought to be impossible. We still don’t understand how this happens.”
Video: Webb Captures Jupiter’s Aurora
NASA’s James Webb Space Telescope has captured a spectacular light show on Jupiter — an enormous display of auroras unlike anything seen on Earth. These infrared observations reveal unexpected activity in Jupiter’s atmosphere, challenging what scientists thought they knew about the planet’s magnetic field and particle interactions. Combined with ultraviolet data from Hubble, the results have raised surprising new questions about Jupiter’s extreme environment.
Producer: Paul Morris. Writer: Thaddeus Cesari. Narrator: Professor Jonathan Nichols. Images: NASA, ESA, CSA, STScI. Music Credit: “Zero Gravity” by Brice Davoli [SACEM] via Koka Media [SACEM], Universal Production Music France [SACEM], and Universal Production Music. The team now plans to study this discrepancy between the Hubble and Webb data and to explore the wider implications for Jupiter’s atmosphere and space environment. They also intend to follow up this research with more Webb observations, which they can compare with data from NASA’s Juno spacecraft to better explore the cause of the enigmatic bright emission.
These results were published today in the journal Nature Communications.
The James Webb Space Telescope is the world’s premier space science observatory. Webb is solving mysteries in our solar system, looking beyond to distant worlds around other stars, and probing the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners, ESA (European Space Agency) and CSA (Canadian Space Agency).
To learn more about Webb, visit:
https://science.nasa.gov/webb
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Media Contacts
Laura Betz – laura.e.betz@nasa.gov
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Bethany Downer – Bethany.Downer@esawebb.org
ESA/Webb, Baltimore, Md.
Christine Pulliam – cpulliam@stsci.edu
Space Telescope Science Institute, Baltimore, Md.
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NASA astronauts Anne McClain (bottom) and Nichole Ayers (top), both Expedition 73 Flight Engineers, checkout spacesuit hardware in the Quest airlock and review procedures for a May 1 spacewalk. Credit: NASA Johnson Space Center NASA astronauts Nichole Ayers and Anne McClain will answer prerecorded questions about science, technology, engineering, and mathematics from students in Bethpage, New York. The two astronauts are currently aboard the International Space Station.
Watch the 20-minute Earth-to-space call at 12:45 p.m. EDT on Friday, May 16, on the NASA STEM YouTube Channel.
Media interested in covering the event must RSVP no later than 5 p.m., Tuesday, May 13, by contacting Francesca Russell at: frussell@syntaxny.com or 516-644-4330.
The event is hosted by Central Boulevard Elementary School. As part of the call, students will highlight their year-long reading program, “Reading is a Blast-Exploring a Universe of Stories.”
For more than 24 years, astronauts have continuously lived and worked aboard the space station, testing technologies, performing science, and developing skills needed to explore farther from Earth. Astronauts aboard the orbiting laboratory communicate with NASA’s Mission Control Center in Houston 24 hours a day through SCaN’s (Space Communications and Navigation) Near Space Network.
Important research and technology investigations taking place aboard the space station benefit people on Earth and lays the groundwork for other agency missions. As part of NASA’s Artemis campaign, the agency will send astronauts to the Moon to prepare for future human exploration of Mars; inspiring Artemis Generation explorers and ensuring the United States continues to lead in space exploration and discovery.
See videos of astronauts aboard the space station at:
https://www.nasa.gov/stemonstation
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Gerelle Dodson
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By Space Force
U.S. Space Force Chief of Space Operations Gen. Chance Saltzman and Italian Air Force Chief of Staff Lt. Gen. Luca Goretti signed a statement of understanding.
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By European Space Agency
Week in images: 05-09 May 2025
Discover our week through the lens
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NASA astronaut and Expedition 72 flight engineer Anne McClain is pictured near one of the International Space Station’s main solar arrays during a spacewalk.NASA/Nichole Ayers In this May 1, 2025, photo taken by fellow NASA astronaut Nichole Ayers, Anne McClain works near one of the International Space Station’s main solar arrays during a spacewalk. During the May 1 spacewalk – McClain’s third and Ayers’ first – the astronaut pair relocated a space station communications antenna and completed the initial mounting bracket installation steps for an International Space Station Rollout Solar Array, or IROSA, that will arrive on a future SpaceX commercial resupply services mission, in addition to some get ahead tasks.
Learn more about station activities by following the space station blog.
Image credit: NASA/Nichole Ayers
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