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Eclipses to Auroras: Eclipse Ambassadors Experience Winter Field School in Alaska
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By NASA
Curiosity Navigation Curiosity Home Mission Overview Where is Curiosity? Mission Updates Science Overview Instruments Highlights Exploration Goals News and Features Multimedia Curiosity Raw Images Images Videos Audio Mosaics More Resources Mars Missions Mars Sample Return Mars Perseverance Rover Mars Curiosity Rover MAVEN Mars Reconnaissance Orbiter Mars Odyssey More Mars Missions Mars Home 2 min read
Sols 4491-4492: Classic Field Geology Pose
NASA’s Mars rover Curiosity acquired this image using its Front Hazard Avoidance Camera (Front Hazcam), showing the rover’s right-front wheel perched on a small, angular block, where it ended its weekend drive of about 75 feet (23 meters). In the interest of stability, the Curiosity team prefers to have all six rover wheels on the ground before deploying its 7-foot-long robotic arm (2.1 meters), so they opted for remote sensing observations instead, then another drive higher in the canyon. Curiosity captured this image on March 23, 2025 — sol 4489, or Martian day 4,489 of the Mars Science Laboratory mission — at 15:24:49 UTC. NASA/JPL-Caltech Written by Lauren Edgar, Planetary Geologist at USGS Astrogeology Science Center
Earth planning date: Monday, March 24, 2025
If you’ve ever seen a geologist in the field, you may have seen a classic stance: one leg propped up on a rock, knee bent, head down looking at the rocks at their feet, and arm pointing to the distant stratigraphy. Today Curiosity decided to give us her best field geologist impression. The weekend drive went well and the rover traversed about 23 meters (about 75 feet), but ended with the right front wheel perched on an angular block. In the Front Hazcam image above, you can see the right front wheel on a small block, and the rover’s shadow with the mast staring out at all the exciting rocks to explore. Great pose, but not what we want for planning contact science! We like to have all six wheels on the ground for stability before deploying the robotic arm. So instead of planning contact science today, the team pivoted to a lot of remote sensing observations and another drive to climb higher in this canyon.
I was on shift as Long Term Planner today, and it was fun to see the team quickly adapt to the change in plans. Today’s two-sol plan includes targeted remote sensing and a drive on the first sol, followed by an untargeted science block on the second sol.
On Sol 4491, ChemCam will acquire a LIBS observation of a well-laminated block in our workspace named “Big Narrows,” followed by long-distance RMI observations coordinated with Mastcam to assess an interesting debris field at “Torote Bowl.” The team planned a large Mastcam mosaic to characterize the stratigraphy at Texoli butte from a different viewing geometry than we have previously captured. Mastcam will also be used to investigate active surface processes in the sandy troughs nearby, and an interesting fracture pattern at “Bronson Cave.” Then Curiosity will drive further to the south and take post-drive imaging to prepare for the next plan. On the second sol the team added an autonomously selected ChemCam AEGIS target, along with Navcam movies to monitor clouds, wind direction, and dust.
Keep on roving Curiosity, and please watch your step!
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Last Updated Mar 26, 2025 Related Terms
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By NASA
6 Min Read NASA’s Webb Captures Neptune’s Auroras For First Time
At the left, an enhanced-color image of Neptune from NASA’s Hubble Space Telescope. At the right, that image is combined with data from NASA’s James Webb Space Telescope. Credits:
NASA, ESA, CSA, STScI, Heidi Hammel (AURA), Henrik Melin (Northumbria University), Leigh Fletcher (University of Leicester), Stefanie Milam (NASA-GSFC) Long-sought auroral glow finally emerges under Webb’s powerful gaze
For the first time, NASA’s James Webb Space Telescope has captured bright auroral activity on Neptune. Auroras occur when energetic particles, often originating from the Sun, become trapped in a planet’s magnetic field and eventually strike the upper atmosphere. The energy released during these collisions creates the signature glow.
In the past, astronomers have seen tantalizing hints of auroral activity on Neptune, for example, in the flyby of NASA’s Voyager 2 in 1989. However, imaging and confirming the auroras on Neptune has long evaded astronomers despite successful detections on Jupiter, Saturn, and Uranus. Neptune was the missing piece of the puzzle when it came to detecting auroras on the giant planets of our solar system.
“Turns out, actually imaging the auroral activity on Neptune was only possible with Webb’s near-infrared sensitivity,” said lead author Henrik Melin of Northumbria University, who conducted the research while at the University of Leicester. “It was so stunning to not just see the auroras, but the detail and clarity of the signature really shocked me.”
The data was obtained in June 2023 using Webb’s Near-Infrared Spectrograph. In addition to the image of the planet, astronomers obtained a spectrum to characterize the composition and measure the temperature of the planet’s upper atmosphere (the ionosphere). For the first time, they found an extremely prominent emission line signifying the presence of the trihydrogen cation (H3+), which can be created in auroras. In the Webb images of Neptune, the glowing aurora appears as splotches represented in cyan.
Image A:
Neptune’s Auroras – Hubble and Webb
At the left, an enhanced-color image of Neptune from NASA’s Hubble Space Telescope. At the right, that image is combined with data from NASA’s James Webb Space Telescope. The cyan splotches, which represent auroral activity, and white clouds, are data from Webb’s Near-Infrared Spectrograph (NIRSpec), overlayed on top of the full image of the planet from Hubble’s Wide Field Camera 3. NASA, ESA, CSA, STScI, Heidi Hammel (AURA), Henrik Melin (Northumbria University), Leigh Fletcher (University of Leicester), Stefanie Milam (NASA-GSFC) “H3+ has a been a clear signifier on all the gas giants — Jupiter, Saturn, and Uranus — of auroral activity, and we expected to see the same on Neptune as we investigated the planet over the years with the best ground-based facilities available,” explained Heidi Hammel of the Association of Universities for Research in Astronomy, Webb interdisciplinary scientist and leader of the Guaranteed Time Observation program for the Solar System in which the data were obtained. “Only with a machine like Webb have we finally gotten that confirmation.”
The auroral activity seen on Neptune is also noticeably different from what we are accustomed to seeing here on Earth, or even Jupiter or Saturn. Instead of being confined to the planet’s northern and southern poles, Neptune’s auroras are located at the planet’s geographic mid-latitudes — think where South America is located on Earth.
This is due to the strange nature of Neptune’s magnetic field, originally discovered by Voyager 2 in 1989 which is tilted by 47 degrees from the planet’s rotation axis. Since auroral activity is based where the magnetic fields converge into the planet’s atmosphere, Neptune’s auroras are far from its rotational poles.
The ground-breaking detection of Neptune’s auroras will help us understand how Neptune’s magnetic field interacts with particles that stream out from the Sun to the distant reaches of our solar system, a totally new window in ice giant atmospheric science.
From the Webb observations, the team also measured the temperature of the top of Neptune’s atmosphere for the first time since Voyager 2’s flyby. The results hint at why Neptune’s auroras remained hidden from astronomers for so long.
“I was astonished — Neptune’s upper atmosphere has cooled by several hundreds of degrees,” Melin said. “In fact, the temperature in 2023 was just over half of that in 1989.”
Through the years, astronomers have predicted the intensity of Neptune’s auroras based on the temperature recorded by Voyager 2. A substantially colder temperature would result in much fainter auroras. This cold temperature is likely the reason that Neptune’s auroras have remained undetected for so long. The dramatic cooling also suggests that this region of the atmosphere can change greatly even though the planet sits over 30 times farther from the Sun compared to Earth.
Equipped with these new findings, astronomers now hope to study Neptune with Webb over a full solar cycle, an 11-year period of activity driven by the Sun’s magnetic field. Results could provide insights into the origin of Neptune’s bizarre magnetic field, and even explain why it’s so tilted.
“As we look ahead and dream of future missions to Uranus and Neptune, we now know how important it will be to have instruments tuned to the wavelengths of infrared light to continue to study the auroras,” added Leigh Fletcher of Leicester University, co-author on the paper. “This observatory has finally opened the window onto this last, previously hidden ionosphere of the giant planets.”
These observations, led by Fletcher, were taken as part of Hammel’s Guaranteed Time Observation program 1249. The team’s results have been published in Nature Astronomy.
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).
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Laura Betz – laura.e.betz@nasa.gov
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Hannah Braun- hbraun@stsci.edu
Space Telescope Science Institute, Baltimore, Maryland
Christine Pulliam – cpulliam@stsci.edu
Space Telescope Science Institute, Baltimore, Md.
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Henrik Melin (Northumbria University)
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Last Updated Mar 25, 2025 Editor Stephen Sabia Contact Laura Betz laura.e.betz@nasa.gov Related Terms
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By NASA
4 min read
NASA to Launch Three Rockets from Alaska in Single Aurora Experiment
Three NASA-funded rockets are set to launch from Poker Flat Research Range in Fairbanks, Alaska, in an experiment that seeks to reveal how auroral substorms affect the behavior and composition of Earth’s far upper atmosphere.
The experiment’s outcome could upend a long-held theory about the aurora’s interaction with the thermosphere. It may also improve space weather forecasting, critical as the world becomes increasingly reliant on satellite-based devices such as GPS units in everyday life.
Colorful ribbons of aurora sway with geomagnetic activity above the launch pads of Poker Flat Research Range. NASA/Rachel Lense The University of Alaska Fairbanks (UAF) Geophysical Institute owns Poker Flat, located 20 miles north of Fairbanks, and operates it under a contract with NASA’s Wallops Flight Facility in Virginia, which is part of NASA’s Goddard Space Flight Center in Greenbelt, Maryland.
The experiment, titled Auroral Waves Excited by Substorm Onset Magnetic Events, or AWESOME, features one four-stage rocket and two two-stage rockets all launching in an approximately three-hour period.
Colorful vapor tracers from the largest of the three rockets should be visible across much of northern Alaska. The launch window is March 24 through April 6.
The mission, led by Mark Conde, a space physics professor at UAF, involves about a dozen UAF graduate student researchers at several ground monitoring sites in Alaska at Utqiagvik, Kaktovik, Toolik Lake, Eagle, and Venetie, as well as Poker Flat. NASA delivers, assembles, tests, and launches the rockets.
“Our experiment asks the question, when the aurora goes berserk and dumps a bunch of heat in the atmosphere, how much of that heat is spent transporting the air upward in a continuous convective plume and how much of that heat results in not only vertical but also horizontal oscillations in the atmosphere?” Conde said.
Confirming which process is dominant will reveal the breadth of the mixing and the related changes in the thin air’s characteristics.
“Change in composition of the atmosphere has consequences,” Conde said. “And we need to know the extent of those consequences.”
Most of the thermosphere, which reaches from about 50 to 350 miles above the surface, is what scientists call “convectively stable.” That means minimal vertical motion of air, because the warmer air is already at the top, due to absorption of solar radiation.
A technician with NASA’s Wallops Flight Facility sounding rocket office works on one of the payload sections of the rocket that will launch for the AWESOME campaign. NASA/Lee Wingfield When auroral substorms inject energy and momentum into the middle and lower thermosphere (roughly 60 to 125 miles up), it upsets that stability. That leads to one prevailing theory — that the substorms’ heat is what causes the vertical-motion churn of the thermosphere.
Conde believes instead that acoustic-buoyancy waves are the dominant mixing force and that vertical convection has a much lesser role. Because acoustic-buoyancy waves travel vertically and horizontally from where the aurora hits, the aurora-caused atmospheric changes could be occurring over a much broader area than currently believed.
Better prediction of impacts from those changes is the AWESOME mission’s practical goal.
“I believe our experiment will lead to a simpler and more accurate method of space weather prediction,” Conde said.
Two two-stage, 42-foot Terrier-Improved Malemute rockets are planned to respectively launch about 15 minutes and an hour after an auroral substorm begins. A four-stage, 70-foot Black Brant XII rocket is planned to launch about five minutes after the second rocket.
The first two rockets will release tracers at altitudes of 50 and 110 miles to detect wind movement and wave oscillations. The third rocket will release tracers at five altitudes from 68 to 155 miles.
Pink, blue, and white vapor traces should be visible from the third rocket for 10 to 20 minutes. Launches must occur in the dawn hours, with sunlight hitting the upper altitudes to activate the vapor tracers from the first rocket but darkness at the surface so ground cameras can photograph the tracers’ response to air movement.
By Rod Boyce
University of Alaska Fairbanks Geophysical Institute
NASA Media Contact: Sarah Frazier
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Last Updated Mar 21, 2025 Related Terms
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By NASA
NASA’s Office of STEM Engagement at Johnson Space Center offers Texas high school students a unique gateway to the world of space exploration through the High School Aerospace Scholars (HAS) program. This initiative gives juniors hands-on experience, working on projects that range from designing spacecraft to planning Mars missions.
Nearly 30 participants who have been hired by NASA in the past five years are HAS alumni. Their stories highlight the program’s impact on students—inspiring innovation, fostering collaboration, unlocking their potential as they move forward into STEM careers.
Discover how the HAS experience has shaped these former students’ space exploration journey.
Jaylon Collins: Designing the Future of Spaceflight
Jaylon Collins always knew he wanted to study the universe but HAS shifted his perspective on what a STEM career could be.
“HAS brought a newfound perspective on what my STEM career could look like, and that shift led me to where I am today,” Collins said. “The coursework, NASA-led seminars, and space exploration research showed me that I could do direct design work to aid humanity’s exploration of the cosmos. I didn’t want to only learn about our universe—I wanted to help explore it.”
Jaylon Collins with his parents at the University of Texas at Austin after being accepted as a student class of 2028. “HAS showed me that a career in STEM doesn’t require a label, only your passion,” Collins said. “I saw that STEM could lead to endless career paths, and the guide was whatever I was most passionate about.”
He saw firsthand how engineers tackle the challenges of spaceflight, from designing spacecraft to solving complex mission scenarios. His strong performance in the program earned him an invitation to Moonshot, a five-day virtual challenge where NASA scientists and engineers mentor students through an Artemis-themed mission. His team developed a Mars sample return mission, an experience that taught him valuable lessons in teamwork.
“We combined our knowledge to design solutions that fit our mission profile, and I learned how problem-solving goes beyond the obvious tools like math and science,” he said. “Instead, it entails finding unique methods that trade off certain elements to bolster others and finding the optimal solution for our problem. HAS taught me to listen more than talk and take constructive feedback to create a solid plan.”
Now studying aerospace engineering at the University of Texas at Austin, Collins credits HAS with building his professional network and opening doors to NASA internship opportunities.
“I learned so much from seminars, my peers, and my Moonshot mentors about not only my academic future but also my prospective career,” he said. “My HAS experience has granted me a web of internship opportunities at NASA through the Gateway Program, and I hope that I can leverage it soon in L’Space Academy’s Lucy Internship.”
Jaylon Collins at Johnson Space Center with the 2024 astronaut graduate class. Collins hopes to contribute to NASA’s mission by developing solutions for deep space travel. Beyond that, he wants to inspire the next generation.
“I believe that the goal of universal knowledge is to reverberate the passions I have onto other curious dreamers,” he said. “Having mentors who teach the curious is the way we progress and innovate as a society, and I am dedicated to being one of those mentors one day.”
Erin Shimoda: Guiding Astronauts to Safety
Erin Shimoda’s path to becoming an aerospace engineer did not start with a clear vision of her future. Growing up in a family full of engineers and scientists, she was already on the STEM path, but she did not know where to focus. HAS changed that.
“HAS exposed me to so many different things that an aerospace engineer does,” she said. “I learned about the history of humans in space, NASA’s missions, how to design 3D models, how to apply equations from math class to real-life scenarios.”
During the program’s summer experience, she and her team designed a mission to send humans to Mars. She credits the program with inspiring her to earn an aerospace engineering degree.
Official portrait of Erin Shimoda. NASA/Josh Valcarcel The HAS program also reshaped her understanding of what a STEM career could look like. “My mentors were incredible. They talked about their projects with such energy and passion. It made me want to feel that way about my own work,” she said. “I didn’t realize before how exciting and innovative working in STEM could be.”
Shimoda said every person she met through HAS was inspiring. “Just knowing that those people existed and worked at NASA helped push me to persevere and succeed in my undergraduate career. I had plenty of bumps in the road, but I had a goal in mind that others had achieved before me, so I knew I could, too.”
One of the biggest lessons she took from the program was the power of collaboration. In high school, she often felt like she was carrying the load on group projects, which left her with a negative view of working on a team. HAS changed that perspective.
“During HAS, everyone was very passionate about accomplishing our goal, so I was consistently supported by my peers,” she said. “That’s so true at NASA, too. Not one single person can build an entire mission to the Moon. We’re all so passionate about accomplishing the mission, so we always support each other and strive for excellence.”
Shimoda also saw firsthand how diverse perspectives lead to better results. “There are many ways to come to a solution, and not every solution is right,” she said. “Collaboration leads to innovation and better problem-solving.”
Erin Shimoda stands in front of a presentation on the Launch Abort System for NASA’s Orion spacecraft and Space Launch System rocket.NASA/Robert Markowitz Now, Shimoda plays a key role in NASA’s Orion Program, ensuring astronaut safety through comprehensive ascent abort planning and procedures, and supporting Artemis recovery operations. She works on guidance, navigation, and control, predicting where the crew module and recovery hardware will land so teams—including the U.S. Navy—are in the right place at the right time.
“It’s exciting because we get to go ‘in the field’ on a U.S. Navy ship during training. Last year, I spent a week on a Navy ship, and seeing everything come together was incredible,” she said.
Her advice for students exploring STEM? “Try every opportunity possible! I joined almost every club imaginable. When I saw the HAS poster in front of my high school’s library, I thought to myself, ‘Well, I’m not in anything space-related yet!’ and the rest is history.”
Looking ahead, she is eager for what is to come. “I’m especially excited for Artemis III, where I’ll be directly involved in recovery operations,” Shimoda said. “I hope that all this work propels us to a future with a sustained human presence on the Moon.”
Hallel Chery: Aspiring Astronaut and Emerging Leader
Hallel Chery is a high school senior who will pursue a degree in mechanical engineering and materials science at Harvard College, with her sights set on becoming both an engineer and an astronaut.
She completed all three stages of HAS: the online course, the virtual Moonshot challenge, and the five-day on-site experience at Johnson. Balancing the program with academics and leading a school-wide tutoring club pushed her limits—but also broadened her confidence.
“I learned that I could take on a tremendous amount of work at one time,” she said. “This realization has helped me become more ambitious in my future plans.”
A portrait of Hallel Chery during her time in the High School Aerospace Scholars program. Moonshot was her proving ground. Tasked with redesigning a module for NASA’s future Gateway lunar space station, she led a team of eight HAS scholars—none of whom she had met before—through an intense, weeklong mission. Their work was presented to NASA scientists and engineers and her group landed among the top teams in the challenge.
“The experience strengthened my confidence in my abilities as a leader,” said Chery. “I learned that I thrive under pressure and am well prepared to tackle any challenge, technical or interpersonal, no matter how difficult it is.”
“Moonshot exposed me for the first time to true, deep teamwork,” she said. “Interacting almost non-stop with the same people over one week in a high stakes situation truly taught me about the dynamics of how teams work, the value of teamwork, and being an effective leader. This, coupled with the program’s emphasis on the importance of teamwork have firmly ingrained in me the essentiality of this core NASA value.”
While at Johnson, Chery toured the Space Vehicle Mockup Facility, watched astronauts suit up at the Neutral Buoyancy Laboratory, and visited the Mission Control Center. “Spending only a few days at Johnson, I can truly say that as an aspiring astronaut, being there felt just like home,” Chery said.
Hallel Chery in a spacesuit mockup at Johnson Space Center. “Because of HAS, I directly visualize myself working in a team to solve the problems I wanted to tackle instead of primarily focusing on the individual accomplishments that will solve them,” she said. “The program taught me how essential teamwork is to effective problem solving and innovation.”
The advice she has for the next generation is to keep exploring and to answer the question: What do you want to contribute for the good of the world?
HAS also introduced her to professional networking early in her academic career. Engaging with NASA professionals provided insight into the agency’s work culture and internship opportunities.
Now, as she prepares for her future in mechanical engineering and materials science, Chery is determined to apply what she has learned.
She is particularly grateful for the mentorship of NASA consultant Gotthard Janson, who provided encouragement and guidance throughout the HAS journey.
“The opportunity to connect with great professionals like him has provided additional wisdom and support as I grow through my academic and professional career,” she said.
Looking ahead, Chery aims to design space habitats, create innovative exercise solutions, and develop advanced materials for use in space.
“I want to help propel humanity forward—on Earth, to the Moon, Mars, and beyond—while inspiring others in the Artemis Generation,” she said. “Building and launching my rocket at Johnson felt like launching my future—one dedicated to contributing to NASA and humanity.”
Johnson Space Center will showcase its achievements at the Texas Capitol for Space Day Texas on Tuesday, March 25. The High School Aerospace Scholars program will have a booth, and NASA will have interactive exhibits highlighting the programs and technologies that will help humanity push forward to the Moon and Mars.
Learn more about NASA’s involvement here.
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By NASA
NASA/Sara Lowthian-Hanna The phases of the lunar eclipse are visible in this time-lapse image of the Moon above the Space Environments Complex at NASA’s Neil Armstrong Test Facility in Sandusky, OH on March 14, 2025.
Toward the middle of the Moon’s track through the sky, it appears red – this is the Blood Moon. One meaning of a “Blood Moon” is based on its red glow. This blood moon occurs during a total lunar eclipse. During a total lunar eclipse, Earth lines up between the Moon and the Sun, hiding the Moon from sunlight. When this happens, the only light that reaches the Moon’s surface is from the edges of the Earth’s atmosphere. The air molecules from Earth’s atmosphere scatter out most of the blue light. The remaining light reflects onto the Moon’s surface with a red glow, making the Moon appear red in the night sky.
Image credit: NASA/Sara Lowthian-Hanna
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