NASA’s Johnson Space Center in Houston closed 2025 with major progress across human spaceflight, research, and exploration. From Artemis II mission preparations to science aboard the International Space Station, teams at Johnson helped prepare for future missions to the Moon and, ultimately, Mars.

Orion Stacked for Artemis II, Orion Mission Evaluation Room Unveiled 

As NASA prepares for the crewed Artemis II mission, a 10-day journey around the Moon and back in early 2026, teams at Johnson continue work to ensure the Orion spacecraft is flight-ready. The mission will carry NASA astronauts Reid Wiseman, Victor Glover, Christina Koch, and CSA (Canadian Space Agency) astronaut Jeremy Hansen. 

In October, NASA completed stacking of the Orion spacecraft and launch abort system atop the agency’s SLS (Space Launch System) rocket inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. Following Orion stacking, teams completed testing critical communications systems between SLS and Orion, and confirmed the interfaces function properly between the rocket, Orion, and the ground systems. 

Teams also unveiled the Orion Mission Evaluation Room inside NASA’s Mission Control Center in Houston. The new facility will support Artemis II by allowing engineers to monitor Orion spacecraft systems in real time and assess vehicle performance throughout the mission, strengthening flight operations beyond low Earth orbit. 

These milestones were made possible by teams across Johnson, including the Orion Program, Flight Operations Directorate, Systems Engineering and Integration Office, Crew and Thermal Systems Division, and the Human Health and Performance Directorate, working closely with other NASA centers and industry partners. 

Together, these accomplishments mark steady progress toward Artemis II and reflect the work underway across NASA to advance the next era of human spaceflight. 

Gateway Lunar Space Station

Together with international and industry partners, the Gateway Program continued progress toward building humanity’s first lunar space station. The powerhouse reached a major milestone this fall with its successful initial power on.

A Space Station Anniversary

On Nov. 2, 2025, NASA marked 25 years of continuous human presence aboard the space station. What began as a set of connected modules has grown into a cornerstone of international partnership, scientific discovery, and technology development in low Earth orbit.
For a quarter of century, the orbiting laboratory has supported research that advances human health, drives innovation, and prepares NASA for future crewed missions to the Moon and Mars.

A truly global endeavor, the space station has been visited by more than 290 people from 26 countries and a variety of international and commercial spacecraft. The unique microgravity laboratory has hosted more than 4,000 experiments from over 5,000 researchers from 110 countries. The orbital outpost also is facilitating the growth of a commercial market in low Earth orbit for research, technology development, and crew and cargo transportation.

After 25 years of habitation, the space station remains a symbol of international cooperation and a proving ground for humanity’s next giant leaps.

Record-Breaking Spacewalks

NASA astronauts Nick Hague, Suni Williams, and Butch Wilmore began 2025 with two successful spacewalks, completing key maintenance and research tasks. Their work included removing an antenna assembly and collecting surface material samples for analysis at Johnson’s Astromaterials Research and Exploration Services, or ARES, division.

With her latest spacewalks, Williams now holds the record for the most cumulative spacewalking time by a woman–62 hours and 6 minutes–placing her fourth among the most experienced spacewalkers.

NASA astronauts Anne McClain and Nichole Ayers also conducted spacewalk operations, installing a mounting bracket to prepare for the future installation of an additional set of International Space Station Rollout Solar Arrays and relocating a space station communications antenna.

These achievements were made possible by countless Johnson teams across the International Space Station, Flight Operations Directorate, and Exploration Architecture, Integration, and Science Directorate.

Two Expeditions Take Flight

NASA’s SpaceX Crew-10 arrived at the space station on March 15 and returned to Earth on on Aug. 9. Crew-10 included NASA astronauts Anne McClain and Nichole Ayers, JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi, and Roscosmos cosmonaut Kirill Peskov—all of whom are trained pilots. Crew-9 also splashed down off Florida’s coast on March 18. 

NASA astronaut Jonny Kim launched aboard the Soyuz MS-27 spacecraft on April 8, marking his first mission to the space station. Expedition 73 officially began following the departure of NASA astronaut Don Pettit aboard Soyuz MS-26 on April 19. NASA astronaut Chris Williams then launched aboard the Soyuz MS-28 spacecraft on Nov. 27 with Kim returning to Earth shortly after on Dec. 9, marking the start of Expedition 74.

NASA Selects 2025 Astronaut Candidate Class

NASA’s 10 new astronaut candidates were introduced Sept. 22 following a competitive selection process of more than 8,000 applicants from across the United States. The class will complete nearly two years of training before becoming eligible for flight assignments supporting missions to low Earth orbit, the Moon, and Mars.

When they graduate, they will join NASA’s active astronaut corps, advancing research aboard the space station and supporting Artemis missions that will carry human exploration farther than ever before.

A Year of Lunar Firsts

Firefly Aerospace’s Blue Ghost Mission 1 launched delivering 10 NASA science and technology instruments to the Moon on March 2. The lander touched down near Mons Latreille in Mare Crisium, a basin on the near side of the Moon. Just days later on March 6, Intuitive Machines’ IM-2 mission landed closer to the lunar South Pole than any previous lander.  

Part of NASA’s Commercial Lunar Payload Services (CLPS) and Artemis campaign, these lunar deliveries are helping scientists address challenges like lunar dust mitigation, resource utilization, and radiation tolerance. 

These milestones were made possible by the collaborative efforts of Johnson teams across NASA’s CLPS initiative, as well as the Engineering; Exploration Architecture, Integration, and Science; and Flight Operations directorates—along with support from other NASA centers. 

First Asteroid-Detecting Space Telescope Completes Testing

NASA’s Near-Earth Object (NEO) Surveyor—its first space-based telescope designed specifically for planetary defense—has successfully completed thermal vacuum testing in Johnson’s Space Environment Simulation Laboratory in Chamber A. 

Set to launch no earlier than late 2027, NEO Surveyor will seek out, measure, and characterize hard-to-detect asteroids and comets that could pose a hazard to Earth. The spacecraft is now at NASA’s Jet Propulsion Laboratory in Southern California for continued development. 

Explore the capabilities and scientific work enabled by the thermal testing conducted in Johnson’s Chamber A. 

These achievements were made possible by countless Johnson teams across the ARES Division and Engineering Directorate. 

First Houston AutoBoative Show

For the first time, NASA rolled out its Artemis exhibit at the Houston AutoBoative Show at NRG Center from Jan. 29 to Feb. 2. Johnson employees introduced vehicle enthusiasts to the technologies NASA and its commercial partners will use to explore more of the lunar surface than ever before.

The Artemis exhibit stood alongside some of the world’s most advanced cars and boats, offering visitors an up-close look at the future of human space exploration.

Attendees explored Artemis II and Artemis III mission road maps, practiced a simulated Orion docking with Gateway in lunar orbit, and tested their skills driving a virtual lunar rover simulator.

NASA showcased lunar rover concepts, highlighting vehicles under development to help Artemis astronauts travel farther across the Moon’s surface.

All three Lunar Terrain Vehicle (LTV) contractors, Astrolab, Intuitive Machines, and Lunar Outpost, completed their Preliminary Design Review milestones in June 2025, marking the end of Phase 1 feasibility study task orders that began in May 2024. NASA is preparing to award Phase 2 of the Lunar Terrain Vehicle Services contract with a demonstration mission task order that will result in the development, delivery, and demonstration of an LTV on the Moon  later this decade.

First Dual NBL Run for NASA’s Artemis III Lunar Spacesuit

NASA and Axiom Space teams held the first dual spacesuit run at NASA’s Neutral Buoyancy Laboratory with NASA astronauts Stan Love and Loral O’Hara. Both crewmembers wore Axiom Space’s lunar spacesuit, called the Axiom Extravehicular Mobility Unit (AxEMU), while performing simulated lunar surface operations underwater to test the spacesuit’s functionality and mobility. This was the final integration test in the pool, proving both the spacesuit and facility are ready to support NASA Artemis training. To date, the Axiom team has conducted over 700 hours of manned, pressurized testing of the Artemis III lunar spacesuit. Axiom Space is scheduled to complete the critical design review in 2026.

These efforts were made possible by teams across Johnson’s Joint Extravehicular Activity and Human Surface Mobility Test Team.

Watch how astronauts, engineers, and scientists are preparing for the next giant leap on the lunar surface.

OSIRIS-REx Team Honored for Asteroid Sample Return

NASA’s OSIRIS-REx curation team earned an Agency Group Achievement Award for their dedication to acquiring, preserving, and distributing asteroid samples from Bennu—the agency’s first asteroid sample return mission.

“The curation team ensured we were ready to receive and safeguard the samples, prepare and allocate them, and make them available to the broader scientific community,” said Jemma Davidson, Astromaterials curator and branch chief of the Astromaterials Acquisition and Curation Office.

After years of preparation, the team overcame unforeseen technical challenges to recover and preserve more than 120 grams of asteroid material—now accessible to scientists worldwide for research into the origins of our solar system.

These achievements were made possible by Johnson teams across the ARES Division and the Exploration Architecture, Integration, and Science Directorate.

Axiom Mission 4 Marks International Firsts in Space Station Mission 

The Axiom Mission 4 crew successfully returned to Earth after an 18-day mission aboard the space station, conducting more than 60 experiments and educational outreach activities. Launched aboard a SpaceX Dragon spacecraft on June 25, the crew docked with the orbiting laboratory the following day to begin a packed schedule of science and outreach. 

The mission marked the first space station flight for India, Poland, and Hungary. Led by former NASA astronaut and Axiom Space director of human spaceflight Peggy Whitson, the crew included ISRO (Indian Space Research Organization) astronaut Shubhanshu Shukla, ESA (European Space Agency) project astronaut Sławosz Uznański-Wiśniewski of Poland, and Hungarian to Orbit (HUNOR) astronaut Tibor Kapu. 

These achievements were made possible by Johnson’s dedicated teams across the International Space Station Program, Commercial Low Earth Orbit Development Program, and Flight Operations Directorate. 

Johnson-Built Mars Hardware on Display at the Smithsonian 

A piece of NASA Johnson Space Center’s Mars legacy has landed at the Smithsonian National Air and Space Museum in Washington, D.C. 

Nearly 10 years in the making, the Scanning Habitable Environments with Raman & Luminescence for Organics & Chemicals (SHERLOC) calibration target—built by Johnson’s ARES Division with partners at NASA’s Jet Propulsion Laboratory and Amentum—now has a permanent place in the museum’s Futures in Space gallery.  

The palm-sized device is displayed beside an R2-D2 replica, connecting the wonder of space travel with the inspiration of seeing real flight hardware up close. 

The calibration target, still in use aboard NASA’s Perseverance rover after more than four years of operations in Jezero Crater, Mars, helps keep SHERLOC’s laser, cameras, and spectrometers precisely tuned as it searches for ancient signs of life on Mars. Mounted on the rover’s front, the target carries 10 known samples so engineers can check SHERLOC’s performance during routine operations. 

Trevor Graff, an ARES scientist who conceived the idea and led the team that designed and built SHERLOC’s calibration device, said the project highlights the unique role of geology in space exploration. “What excites me most is the practical application of geology—where science enables exploration and exploration enables science,” he said.  

SHERLOC itself sits on the rover’s seven-foot robotic arm and combines a laser, camera, and chemical analyzers to look for signs that water once altered the Martian surface, potentially revealing evidence of past microscopic life. Several calibration targets are made from spacesuit material samples, allowing Johnson scientists to study how fabrics endure the harsh Martian environment to protect future explorers. 

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After 25 years of continuous human presence in space, the International Space Station remains a training and proving ground for deep space missions, enabling NASA to focus on Artemis missions to the Moon and Mars. The orbiting laboratory is also a living archive of human experience, culture, and connection.  

Creating community

With 290 visitors from 26 countries and five international partners, the space station has celebrated many different cultures during its 25 years of continuous human presence. Crew members share their holiday traditions, cuisine, music, and games with each other – creating their own community, similar to the ones they have back home, while maintaining a connection to Earth. 

Crews living and working aboard the space station during the holiday season have found creative ways to mark the occasions from low Earth orbit. Festive socks, Halloween costumes, mini artificial Christmas trees, champagne, and candle-less menorahs are just a few of the items space station visitors have brought with them to spread holiday cheer.  

Mealtimes are also the perfect opportunity to share a taste of home. The space station’s standard menu is inclusive of varied cuisines, but crew members also contribute their own special food items. French astronaut Thomas G. Pesquet once brought macarons to help celebrate his birthday, and several JAXA (Japan Aerospace Exploration Agency) astronauts have hosted sushi parties.  

Sharing a piece of themselves and their cultures not only fosters crew camaraderie but also supports the international collaboration necessary to sustain the space station’s success. 

Taking music to new heights 

The first musical instrument, an acoustic guitar, arrived at the orbiting laboratory in August 2001. Since then, playing music aboard the orbiting laboratory has supported astronaut well-being, fostered relationships among international crew members, and helped them connect with home. 

The space station’s instrument collection started with an acoustic guitar and an electric keyboard, and also includes an alto saxophone. Some NASA astronauts bring their own instruments to suit their playing habits – bagpipes for Kjell Lindgren, flutes for Catherine Coleman, a piccolo for Jessica Meir. International partners have, too. In April 2010, JAXA astronauts Soichi Noguchi and Naoko Yamazaki performed a duet using a bamboo flute and a miniature version of a traditional Japanese stringed instrument.  

Several crew members have played in concerts on Earth while still orbiting the planet. Coleman played a duet with the frontman of Jethro Tull, for example, and ESA (European Space Agency) Luca Parmitano used the station’s electric keyboard to participate in a concert at Moscow’s Luzhniki Stadium. He later became the first person to perform a DJ set from space. 

The space station has even hosted at least one epic jam session, featuring the crew members of Expedition 55 on guitar, flutes, and a drum made from a repurposed waste container. 

Read more musical memories here. 

An astronaut’s perspective

Across the decades and missions of U.S. human spaceflight, NASA astronauts have shared a unique and transcendent experience: looking down at Earth from the space station’s cupola windows. That experience has had a profound impact on many, creating a powerful shift in the way astronauts think about life and our home planet – a phenomenon known as the overview effect. 

Crew members aboard the orbital outpost describe the beauty of our planet and how it stands in stark contrast to the darkness of space from the cupola module. Many comment on Earth’s fragility and the need to protect it after observing how thin the planet’s atmosphere appears to be from orbit. Others note the lack of borders or lines we see on a map, emphasizing that all of humanity is connected.  

Regardless of how long they stay in orbit, astronauts return with a different worldview they are eager to share with others.  

Read more about astronaut perspectives on the overview effect or watch “Down to Earth” on NASA+. 

Capturing the beauty and science in orbit  

The space station provides a vantage point like no other. The cupola observation module, with its seven windows, offers unparalleled panoramic views of Earth and space which are crucial for monitoring mission activities, conducting scientific observations, and supporting crew morale and habitability. Astronauts aboard the orbiting laboratory have captured millions of photographs of Earth, creating a visual archive that spans 25 years of continuous human presence in orbit.  

These images serve as scientific data used to track hurricanes, monitor wildfires, measure glacial retreat, and study urban growth through NASA’s Crew Earth Observations. Astronaut photography also supports NASA Disaster Response, a program that works with various NASA centers to collect data before, during, and following a disaster to aid recovery efforts. 

The cupola has become a favorite spot for astronauts to work and reflect. Their photos help connect people worldwide to the orbital outpost, reinforcing the importance of protecting our planet.  

Earth views

Station memories from the ground 

Behind every moment aboard the orbiting laboratory is a dedicated team on the ground – engineers, scientists, flight directors, and communicators – who work around the clock to keep crews safe and missions running smoothly.  

They mark milestones together, from spacecraft dockings and crew returns to mission anniversaries and plaque-hanging ceremonies. Teams on console in the mission control have even organized chess matches with astronauts in orbit to foster connection between Earth and space. 

The flight control team celebrated the 25th anniversary of continuous human habitation in space with the Expedition 73 crew aboard the station on Nov. 2, 2025. The team congratulated the crew to mark the incredible milestone. They emphasized that humanity has held a heartbeat in orbit for a quarter century, a testament to human curiosity, cooperation, and courage that keeps the light of exploration shining above Earth and represents the very best of what humankind can achieve together. Every orbit, every experiment, and every challenge has taught teams how to adapt, grow, and build the skills needed for the next great leaps to the Moon, Mars, and beyond.

Holidays are often spent in the control rooms, where teams decorate consoles, share potluck meals, and hold the occasional cookie-cutting contest. Engineers in the station’s Mission Evaluation Room (MER) host an annual “MERloween,” a tradition that began in 2006 to celebrate the year’s milestones and reflect on lessons learned. 

These traditions highlight the spirit and teamwork that make every mission possible. The dedication honed through decades of mission support now guides the teamwork and expertise that will send Artemis astronauts to the Moon and beyond. 

Painting hope beyond Earth 

Former NASA astronaut Nicole Stott became the first person to watercolor in space during her time aboard the orbiting laboratory. Inspired by the beauty of Earth from orbit, she used her art to connect the science of human spaceflight with the creativity that defines it. 

After returning to Earth, Stott helped launch the Space for Art Foundation, which unites children around the world through the healing power of art and space. One of its most meaningful initiatives, the Spacesuit Art Project, invites young patients undergoing cancer treatment to create colorful artwork that is transformed into custom-made spacesuits. Each suit – Hope, Courage, Unity, Victory, Dreamer, Exploration, Beyond, and Infinity – celebrates the imagination and resilience of its creators. 

Four of these suits have journeyed to and from the orbiting laboratory, where astronauts wore them during special downlinks to speak with the patients and raise awareness for childhood cancer research. The project shows that space exploration is not only about discovery, but about compassion, creativity, and the human spirit that connects us all. 

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Select walls at NASA’s Johnson Space Center have been transformed into works of art. Each piece reflects creativity, collaboration, and the spirit of discovery. Painted by Texas students, the murals honor the legacy of the International Space Station and 25 years of continuous human presence in space. 

The International Space Station Program Mural Project began in 2022 as part of a broader effort to bring color and inspiration into the workplace while connecting classrooms to NASA’s mission. 

“The mural collection is a reminder that today’s dreams can be tomorrow’s realities,” said Space Operations Mission Directorate Deputy Associate Administrator Joel Montalbano. “The future of space exploration depends on the imagination of our students.” 

As NASA prepares for the next giant leap through Artemis, the art on the walls serves as a reminder that every mission begins with creativity and courage. This initiative continues to inspire the next generation to Dare | Unite | Explore. While art allows for interpretation, each mural required careful planning, communication, and problem-solving, just like the work behind human spaceflight.  

The most recent mural, “Dream Big,” was installed in the hallway leading to the International Space Station Program suite on the fifth floor of building 1. Created by Texas City High School students with the International Space Station Program Mission Integration and Operations team, the artwork shows a grayscale child pulling back a curtain to reveal rockets, astronauts, and bright planetary landscapes.  

The mural’s design draws from both classic and modern art influences. The students were inspired by Van Gogh’s impressionistic style and Banksy’s Behind the Curtain, combining movement and curiosity to reflect how imagination can open the door to exploration. 

“The National Art Honor Society was honored to take on this inspiring project,” said Texas City High School art teacher Jennifer Massie. “They chose ‘Where Creativity Meets Reality’ to show how a child’s creative mind keeps moving and evolving—and that with big dreams and hard work, kids can follow in their heroes’ footsteps.” 

What started as an idea between Gary Johnson, technical manager in the International Space Station Mission Integration and Operations Office, and Raul Tijerina, then the program’s building graphics lead, has grown into a gallery-sized initiative that bridges science and creativity. 

“We want students to have the unique opportunity to contribute to NASA’s legacy through their artwork,” Johnson said. “These murals show that every mission begins with imagination and that the next generation of explorers is already helping paint humanity’s future among the stars.”  

Two murals are now housed in the hallway of the Neutral Buoyancy Laboratory’s International Space Development Integration Laboratory, known as the SDIL. The first, “Dream Explore Discover,” created by Friendswood High School students, was originally displayed in building 4 south. Under the guidance of art teacher Mandy Harris, more than 30 students designed and painted the 8-by-18-foot mural, starting with sketches and brainstorming sessions that considered how art could reflect human space exploration. The students combined their ideas into a single design celebrating the beauty and excitement of discovery. 

Elements of the mural include an astronaut’s visor reflecting the Houston skyline, zinnias symbolizing life and science connecting beyond Earth, and a small floating teddy bear representing both the dreams of children who look up to the stars and the generations of explorers who carried small tokens of home into space. It serves as a reminder of the human heart behind every mission.  

The mural also features the launch of NASA’s SLS (Space Launch System) rocket with NASA’s Orion spacecraft riding on top, heading for the next giant leap in exploration. Beside the capsule, the Orion constellation appears in the sky, symbolizing how the stars continue to guide humanity’s journey to the Moon, Mars, and beyond.  

“The Moon Now,” created by students from La Marque High School, Blocker Middle School, and Giles Middle School, is also housed at the SDIL. The artwork depicts two astronauts on the lunar surface wearing Axiom spacesuits with mirrored visors that reflect the faces of the next generation who will carry humanity back to the Moon. Individual student artworks of the Milky Way and celestial objects were collaged into the final piece, creating a tapestry of imagination and exploration. 

The remaining murals are installed in building 4 south at Johnson. In 2023, the program expanded to include Dickinson High School, whose students created “A Starry Night,” a blend of Renaissance-style painting and modern space imagery. “Everyone wanted to be involved,” said art teacher Jennifer Sumrall. “The kids loved it and did their own research on how each of NASA’s missions impacts the world.” 

“Absolute Equality: Breaking Boundaries” by Houston artist Reginald C. Adams symbolizes unity and humanity’s shared future in space exploration. Two figures share a single helmet. Patterns inspired by circuitry surround the faces and suggest the role of technology in connecting people around the world and beyond it. 

“Collaboration” was painted by La Marque High School students with art teacher Joan Finn and artist Cheryl Evans to depict the interconnected roles of visionaries, engineers, artists, and astronauts in exploration. Built from 10 stretched canvases bolted together — a nod to the station’s assembly across more than 40 missions — the mural includes the space station patch at the bottom to represent the collaboration of the 15 countries involved.

NASA Johnson thanks Joel Montalbano, who championed student engagement that connects classrooms to mission work during his tenure as International Space Station Program manager. The center also acknowledges Gary Johnson for conceiving the mural project and guiding its partnerships, Raul Tijerina for early design leadership that set the standard, Gordon Andrews for opening doors through behind-the-scenes tours, and art educators for mentoring the students who brought each mural to life.  

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For more than 25 years, Mark Elder has helped make human spaceflight safe and possible. As the International Space Station EVA hardware manager in the Extravehicular Activity (EVA) Office within the EVA and Human Surface Mobility Program, he leads the team responsible for the spacesuits, tools, and logistics that keep astronauts protected during spacewalks—and ensures NASA is ready for the next era of Artemis exploration. 

His team is programmatically responsible for the Extravehicular Mobility Unit, or EMU, spacesuit. That means every bolt, bearing, and battery astronauts rely on outside the International Space Station ultimately falls under their watch. He also oversees the EVA Space Operations Contract, which provides engineering and technical support to keep spacesuit systems flight ready. 

Elder’s work directly supports every EVA, or spacewalk, conducted at the station. His team coordinates with astronauts, engineers, and the Mission Control Center in Houston to make sure the suits and tools operate reliably in the most unforgiving environment imaginable. Their work helps ensure every EVA is conducted safely and successfully. 

Elder’s passion for NASA began at an early age. 

“When I was little, my parents gave me a book called ‘The Astronauts,’” he said. “It had drawings of a reusable spacecraft—the space shuttle—and I fell in love with it. From then on, I told everyone I was going to work at NASA.” 

That dream took off at age 16, when he attended Space Academy in Huntsville, Alabama. “That cemented my dream of someday working at NASA, and it taught me a little bit more about the different roles within the agency,” he said. 

While attending Case Western Reserve University as a mechanical engineering student, he learned about a new NASA program that allowed college students to design and build an experiment and then come to Johnson Space Center for a week to fly with their experiment on the Boeing KC-135 Stratotanker. “I jumped on the chance to be part of the team,” he said. “The experience further cemented my dream of working at NASA one day—Johnson in particular.” 

After graduation, Elder worked with Pratt & Whitney on jet engines. While the experience was invaluable, he knew his heart belonged in human spaceflight. “I learned that one of Pratt’s fellow companies under the United Technologies umbrella was Hamilton Sundstrand, which was the prime contractor for the spacesuit,” he said. “I jumped at the chance to transfer, and my career at NASA finally began.” 

Elder spent his first three years at Johnson performing tool-to-tool fit checks on spacewalking equipment, giving him hands-on experience with nearly every tool that he would eventually become responsible for as a hardware manager. 

His early years coincided with the shuttle return-to-flight era, when he worked on reinforced carbon-carbon panel repairs and thermal protection systems. Those experiences built his technical foundation and prepared him for the leadership roles to come. 

Over time, Elder took on increasingly complex assignments, eventually leading the team that developed the EVA Long Life Battery—the first human-rated lithium battery used in space. His team created a rigorous test plan to certify the battery for human spaceflight at a time when lithium batteries were under scrutiny for safety concerns. 

“Finally signing the certification paperwork was satisfying, but watching an EVA powered by the batteries provided a great sense of pride,” he said. 

This innovation set the stage for future generations of even safer, higher-capacity batteries that power today’s spacewalking operations and will eventually support lunar surface activities. 

Looking back, Elder said some of his greatest lessons came from learning how to lead with purpose. “The great thing about NASA is the highly motivated and dedicated workforce,” he said. “When I first became a team lead, I thought success meant making quick decisions and moving fast. I learned that leadership is really about listening. Strong teams are built on trust and open communication.” 

Another defining lesson, he said, has been learning to assume positive intent. “In a place like NASA, everyone is deeply passionate about what they do,” he said. “It’s easy to misinterpret a disagreement as opposition, but when you remember that everyone is working toward the same goal, the conversation changes. You focus on solving problems, not winning arguments.” 

That mindset has guided Elder through some of NASA’s most complex programs and helped him build lasting partnerships across the agency. 

Today, Elder’s work extends beyond the orbiting laboratory. As NASA prepares for Artemis missions to the Moon, his team’s experience maintaining and improving the EMU informs the design of next-generation exploration suits. 

“The foundation we’ve built on the space station is critical for the future,” he said. “Every tool we’ve refined, every system we’ve upgraded—it all feeds into how we’ll operate on the lunar surface and eventually on Mars.” 

Elder believes that the key to future success lies in perseverance. He advises the next generation to never stop dreaming. “My path wasn’t direct, and it would have been easy for me to give up,” he said. “But dreams have a way of guiding you if you don’t let go of them.” 

When he’s not supporting those missions, Elder’s creativity takes shape in his workshop. “In my spare time, I love woodworking,” he said. “Building something useful from a pile of rough-sawn boards helps calm me and gives me a great sense of accomplishment. I love being able to build furniture for my family,” he added, after recently finishing a desk for his youngest son. 

The same patience and precision he brings to woodworking defines his approach to exploration—steady progress, careful craftmanship, and attention to detail. “As NASA goes to the Moon and Mars, there will be challenges,” Elder said. “As long as we keep dreaming, we will see the next generation walking on the Moon and heading to Mars.” 

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NASA’s 2025 Astronaut Candidates: Shaping Artemis Exploration 

When NASA’s 2025 astronaut candidates arrived at the agency’s Johnson Space Center in Houston this fall, they stepped into history, sharing a common mission to master the skills and teamwork that define NASA’s next era of exploration. 

Selected from a pool of more than 8,000 applicants, the new class represents a range of backgrounds — military test pilots, engineers, a physician, and a scientist — but all were inspired by moments in their lives that set them on a path to space.  

They will spend nearly two years in training before becoming eligible for missions to low Earth orbit, the Moon, and eventually, Mars. When they graduate, they will join NASA’s active astronaut corps, advancing science aboard the International Space Station and supporting Artemis missions that will carry human exploration farther than ever before. 

During the class announcement at Johnson on Sept. 22, 2025, Center Director Vanessa Wyche celebrated the moment as a milestone for exploration. 

“Today is an exciting day for our nation and for all of humanity as we introduce NASA’s 2025 astronaut candidates — the next generation who will help us explore the Moon, Mars, and beyond,” Wyche said. “Each one of these candidates brings unique experiences and perspectives that reflect the diversity of America and the spirit of exploration that defines NASA.” 

Behind their new blue flight suits are years of preparation and stories as multifaceted as the missions they will one day support. 

Different Roads to the Same Horizon 

Some of the candidates built their careers in the air, where precision, communication, and teamwork were part of every mission. Former U.S. Navy pilot and test pilot Rebecca Lawler says that is exactly what drew her to NASA. 

“All of these people are coming from different disciplines and levels of expertise, and you’re all working together to get science to fly,” she said. “That’s what excites me most — bringing those experiences together as a team.” 

Imelda Muller, an anesthesiologist and former U.S. Navy undersea medical officer, said her experience supporting experimental diving teams taught her how people from different backgrounds can come together under one mission, something she sees echoed at NASA. 

Muller remembers looking up at the night sky as a kid, able to see almost every star on a clear night. Her grandfather worked on the Apollo program and used to share stories with her, and she says the mix of stargazing and imagining those missions inspired her dream of becoming an astronaut. 

Anna Menon, a biomedical engineer and former flight controller, has seen the human side of spaceflight from the ground and from space. She supported astronaut health aboard the space station from the Mission Control Center in Houston and served as a mission specialist and medical officer aboard SpaceX’s Polaris Dawn mission.

As more people venture into space, we have this incredible opportunity to learn how the human body changes in microgravity. That knowledge will help keep crews healthy as we go farther than ever before.

Anna Menon

NASA Astronaut Candidate

A Houston native, she discovered her passion for exploration in the fourth grade during a field trip to Johnson. “That experience lit a fire in me to want to be part of the space industry,” she said. 

The Language of Human Spaceflight 

For the test pilots — including Adam Fuhrmann, Cameron Jones, Ben Bailey, and Erin Overcash — flight testing taught adaptability, composure, and the discipline to make quick decisions when it matters most. As Fuhrmann put it, it is about knowing when to lead and when to listen. 

In flight test, nothing happens alone. We work with incredible engineers and professionals to plan and execute complex missions. That teamwork translates perfectly to human spaceflight.

Adam Fuhrmann

NASA Astronaut Candidate

Every astronaut candidate will spend nearly two years learning spacecraft systems, practicing spacewalks in the Neutral Buoyancy Laboratory, flying T-38 jets, and studying geology, robotics, and survival training. 

As U.S. Army Chief Warrant Officer and helicopter test pilot Ben Bailey said, it is not one skill that matters most — it is the combination. 

“Each one is exciting on its own — flying, language training, spacewalks — but getting to do them all together, as a crew, that’s the best part,” Bailey said. 

During the event, current astronauts welcomed the new class and shared advice drawn from their own journeys in human spaceflight. “Thankfully, you will have some of the most talented, passionate instructors and an incredibly dedicated team here at NASA,” said NASA astronaut Chris Williams. “Some of the most special moments will come as you find how much you get to learn from each other.” 

From the International Space Station, NASA astronaut Zena Cardman encouraged the candidates to “learn everything you can, get to know each other, and enjoy the ride.” 

NASA astronaut Jonny Kim followed with a reminder every explorer carries forward: “The people sitting beside you now will become lifelong friends.” 

Explorers of the Golden Age 

From geologist Lauren Edgar, who worked on the Curiosity Mars Rover and the Artemis III science team, to engineers like Yuri Kubo, who completed seven NASA internships, and Katherine Spies, who designed and tested flight systems that make exploration possible, each brings a layer of expertise to the agency’s future on the Moon and beyond. 

I’ve always loved figuring out how things work and finding ways to make them better. That’s what drew me to engineering, and it’s what keeps me excited about exploration.

Yuri Kubo

NASA Astronaut Candidate

A New Era Begins 

At the announcement ceremony, NASA Flight Operations Director Norm Knight said, “Every lesson learned aboard station has paved the way for where we’re headed next – to the Moon, this time to stay, and on to Mars. We have a group of individuals who are not only exceptional, but who will be inspirational for the United States of America and for our planet.”  

Together, the astronaut candidates reflect the spirit of Artemis — curiosity, courage, and continuous learning as humanity prepares for its next giant leap. 

About the Author

Sumer Loggins

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In 2025, NASA and its international partners celebrate 25 years of continuous human presence aboard the International Space Station. Since November 2, 2000, more than 290 people from 26 countries have lived and worked aboard the orbiting laboratory, conducting thousands of experiments that have advanced science and technology on Earth and paved the way for Artemis missions to the Moon and future journeys to Mars. 

Beyond its role as a science platform, the station has been a bridge—connecting cultures, sparking creativity, and inspiring generations. The memories of Johnson Space Center employees reflect how the orbiting laboratory is not only an engineering marvel but also a deeply human endeavor.  

Christopher Brown – Advancing Life Support Systems for Future Exploration 

As a space station Environmental Control and Life Support System (ECLSS) integrator, Christopher Brown’s role has been ensuring astronauts have clean air and water. ECLSS removes carbon dioxide from the air, supplies oxygen for breathing, and recycles wastewater—turning yesterday’s coffee into tomorrow’s coffee. Today, these systems can recover nearly 98% of the water brought to the station.  

His proudest memory was commissioning regenerative life support systems and raising a symbolic toast with the crew while on console in mission control. He also helped activate the Water Storage System, saving crew time and improving operations on station. For Brown, these milestones were vital steps toward future long-duration missions beyond Earth. 

Stephanie Sipila – The Heart of Microgravity Research  

Stephanie Sipila, now integration manager for NASA’s Extravehicular Activity and Human Surface Mobility Program, began her career as a mechanical and robotic systems instructor for the orbital outpost. Her favorite experiment, Engineered Heart Tissues, studies microgravity’s effect on the human heart to help develop new treatments for cardiovascular disease. She recalls NASA astronaut Sunita Williams running the Boston Marathon on a treadmill aboard station, becoming the first person to complete the race in space and showing how astronauts stay connected to Earth while living on orbit.  

Sipila also highlights the Spacesuit Art Project, an initiative that turned artwork from children with cancer into spacesuits flown to and worn aboard the orbital outpost during live downlinks, connecting science, art, and hope — and raising awareness of cancer research conducted aboard the orbital outpost.  

Liz Warren – Where Exploration Meets Humanity 

Space station Associate Chief Scientist Liz Warren has seen firsthand how the Spacesuit Art Project uplifted children on Earth. During Expedition 52, she watched astronaut Jack Fischer wear a suit covered in artwork created by young cancer patients, including his own daughter, a survivor. “It was incredibly touching to note the power of art and inspiration. Human spaceflight requires fortitude, resilience, and teamwork—so does fighting childhood cancer,” Warren said. 

Her memories also extend to her time as an operations lead for NASA’s Human Research Program, which uses research to develop methods to protect the health and performance of astronauts in space to prepare for long-duration missions. While out for a weekend run, Warren received a call from the Payload Operations and Integration Center in Huntsville, Alabama. An astronaut on station, following a prescribed diet for a research study, wanted to swap out a food item. Warren coordinated with her support team and relayed the decision back to orbit—all while continuing her run. The moment, she recalls, underscored the constant, real-time connection between astronauts in space and teams on the ground. 

Adam Baker – Checkmate: Space Debris Cleanup 

As an aerospace engineer, Adam Baker helped track experiments and spacecraft operations from mission control. Baker remembers when mission control played a live chess match with astronaut Greg Chamitoff during Expedition 17, a moment that showed the unique ways the station connects crews in orbit with people on Earth. His favorite technical project, though, was the RemoveDebris small satellite, deployed from the station in 2018 to test technologies for cleaning up space junk. “Knowing these experiments could one day help keep the orbital environment safe made it even more meaningful,” he said.   

Michael McFarlane – Training for Success 

As chief of the Simulation and Graphics Branch, Michael McFarlane prepared astronauts for space station assembly missions using high-fidelity simulators. “My greatest memory is seeing the station grow as we successfully executed assembly missions that looked very much like what we analyzed and trained for in our ground-based simulations,” he said. 

A Legacy of Ingenuity and Community 

In the Mission Evaluation Room, engineers not only troubleshoot in real time but also celebrate milestones with traditions like “MERloween,” where controllers dress in space-themed costumes to honor the year’s lessons learned. 

For social media consultant Mark Garcia, sharing the station story with the public has been the highlight of his career. His favorite moment was watching NASA’s SpaceX Crew-9 splash down in 2025, greeted by dolphins in the Gulf of America. “I love writing about the science aboard the station that benefits people on Earth,” he said. 

For 25 years, the International Space Station has shown what humanity can accomplish together. The lessons learned aboard will guide Artemis missions to the Moon and future journeys to Mars—ensuring the next 25 years are built on innovation, resilience, and the human spirit. 

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