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Galileo ‘daughter mission’ name revealed: Celeste
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By NASA
A view inside the sandbox portion of the Crew Health and Performance Analog, where research volunteers participate in simulated walks on the surface of Mars. Credit: NASA Four research volunteers will soon participate in NASA’s year-long simulation of a Mars mission inside a habitat at the agency’s Johnson Space Center in Houston. This mission will provide NASA with foundational data to inform human exploration of the Moon, Mars, and beyond.
Ross Elder, Ellen Ellis, Matthew Montgomery, and James Spicer enter into the 1,700-square-foot Mars Dune Alpha habitat on Sunday, Oct. 19, to begin their mission. The team will live and work like astronauts for 378 days, concluding their mission on Oct. 31, 2026. Emily Phillips and Laura Marie serve as the mission’s alternate crew members.
Through a series of Earth-based missions called CHAPEA (Crew Health and Performance Exploration Analog), carried out in the 3D-printed habitat, NASA aims to evaluate certain human health and performance factors ahead of future Mars missions. The crew will undergo realistic resource limitations, equipment failures, communication delays, isolation and confinement, and other stressors, along with simulated high-tempo extravehicular activities. These scenarios allow NASA to make informed trades between risks and interventions for long-duration exploration missions.
“As NASA gears up for crewed Artemis missions, CHAPEA and other ground analogs are helping to determine which capabilities could best support future crews in overcoming the human health and performance challenges of living and operating beyond Earth’s resources – all before we send humans to Mars,” said Sara Whiting, project scientist with NASA’s Human Research Program at NASA Johnson.
Crew members will carry out scientific research and operational tasks, including simulated Mars walks, growing a vegetable garden, robotic operations, and more. Technologies specifically designed for Mars and deep space exploration will also be tested, including a potable water dispenser and diagnostic medical equipment.
“The simulation will allow us to collect cognitive and physical performance data to give us more insight into the potential impacts of the resource restrictions and long-duration missions to Mars on crew health and performance,” said Grace Douglas, CHAPEA principal investigator. “Ultimately, this information will help NASA make informed decisions to design and plan for a successful human mission to Mars.”
This mission, facilitated by NASA’s Human Research Program, is the second one-year Mars surface simulation conducted through CHAPEA. The first mission concluded on July 6, 2024.
The Human Research Program pursues methods and technologies to support safe, productive human space travel. Through applied research conducted in laboratories, simulations, and aboard the International Space Station, the program investigates the effects spaceflight has on human bodies and behaviors to keep astronauts healthy and mission-ready.
Primary Crew
Ross Elder, Commander
Ross Elder, from Williamstown, West Virginia, is a major and experimental test pilot in the United States Air Force. At the time of his selection, he served as the director of operations of the 461st Flight Test Squadron. He has piloted over 35 military aircraft and accumulated more than 1,800 flying hours, including 200 combat hours, primarily in the F-35, F-15E/EX, F-16, and A-10C. His flight test experience focuses on envelope expansion, crewed-uncrewed teaming, artificial intelligence, autonomy, mission systems, and weapons modernization.
Elder earned a Bachelor of Science in astronautical engineering from the U.S. Air Force Academy in Colorado Springs, Colorado, and commissioned as an Air Force officer upon graduation. He earned a Master of Science in mechanical engineering from the University of Colorado in Colorado Springs and a master’s degree in flight test engineering from the U.S. Air Force Test Pilot School at Edwards Air Force Base in California.
Ellen Ellis, Medical Officer
Ellen Ellis, from North Kingstown, Rhode Island, is a colonel and an acquisitions officer in the United States Space Force. She currently serves as a senior materiel leader in the National Reconnaissance Office (NRO) Communications Systems Directorate. She is responsible for fielding commercial cloud and traditional information technology hosting solutions and building modernized data centers for the NRO. She previously served as an Intercontinental Ballistic Missile operations officer and GPS satellite engineer, and she also developed geospatial intelligence payloads and ground processing systems.
She earned a Bachelor of Science in aerospace engineering at Syracuse University in New York and holds four master’s degrees, including a Master of Science in systems engineering from the Naval Postgraduate School in California, and a Master of Science in emergency and disaster management from Georgetown University in Washington.
Matthew Montgomery, Science Officer
Matthew Montgomery, from Los Angeles, is a hardware engineering design consultant who works with technology startup companies to develop, commercialize, and scale their products. His focus areas include LED lighting, robotics, controlled environment agriculture, and embedded control systems.
Montgomery earned a Bachelor of Science and a Master of Science in electrical engineering from the University of Central Florida. He is also a founder and co-owner of Floating Lava Studios, a film production company based in Los Angeles.
James Spicer, Flight Engineer
James Spicer is a technical director in the aerospace and defense industry. His experience includes building radio and optical satellite communications networks; space data relay networks for human spaceflight; position, navigation, and timing research; and hands-on spacecraft design, integration, and tests.
Spicer earned a Bachelor of Science and Master of Science in aeronautics and astronautics, and holds a Notation in Science Communication from Stanford University in California. He also holds commercial pilot and glider pilot licenses.
Alternate Crew
Emily Phillips
Emily Phillips, from Waynesburg, Pennsylvania, is a captain and pilot in the United States Marine Corps. She currently serves as a forward air controller and air officer attached to an infantry battalion stationed at the Marine Corps Air Ground Combat Center in Twentynine Palms, California.
Phillips earned a Bachelor of Science in computer science from the U.S. Naval Academy in Annapolis and commissioned as a Marine Corps officer upon graduation. She attended flight school, earning her Naval Aviator wings and qualifying as an F/A-18C Hornet pilot. Phillips has completed multiple deployments to Europe and Southeast Asia.
Laura Marie
Born in the United Kingdom, Laura Marie immigrated to the U.S. in 2016. She is a commercial airline pilot specializing in flight safety, currently operating passenger flights in Washington.
Marie began her aviation career in 2019 and has amassed over 2,800 flight hours. She holds a Bachelor of Arts in philosophy and a Master of Science in aeronautics from Liberty University in Lynchburg, Virginia. In addition to her Airline Transport Pilot License, she also possesses flight instructor and advanced ground instructor licenses. Outside the flight deck, Marie dedicates her time to mentoring and supporting aspiring pilots as they navigate their careers.
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By NASA
NASA/Rad Sinyak Orion Mission Evaluation Room (MER) team member works during an Artemis II mission simulation on Aug. 19, 2025, from the new Orion MER inside the Mission Control Center at NASA’s Johnson Space Center in Houston.
As NASA’s Orion spacecraft is carrying crew around the Moon on the Artemis II mission, a team of expert engineers in the Mission Control Center at NASA’s Johnson Space Center in Houston will be meticulously monitoring the spacecraft along its journey. They’ll be operating from a new space in the mission control complex built to host the Orion Mission Evaluation Room (MER). Through the success of Orion and the Artemis missions, NASA will return humanity to the Moon and prepare to land an American on the surface of Mars.
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By NASA
Teams at NASA’s Kennedy Space Center in Florida participate in the first joint integrated launch countdown simulation for Artemis I inside Firing Room 1 of the Launch Control Center on July 8, 2021. Seen at the top of the room is Charlie Blackwell-Thompson (right), launch director.Credit: NASA/Ben Smegelsky As four astronauts venture around the Moon on NASA’s Artemis II test flight in 2026, many people will support the journey from here on Earth. Teams directing operations from the ground include the mission management team, launch control team, flight control team, and the landing and recovery team, each with additional support personnel who are experts in every individual system and subsystem. The teams have managed every aspect of the test flight and ensure NASA is prepared to send humans beyond our atmosphere and into a new Golden Age of innovation and exploration.
Mission management team
Reviews of mission status and risk assessments are conducted by the mission management team, a group of 15 core members and additional advisors. Amit Kshatriya, NASA’s deputy associate administrator, Moon to Mars Program, will serve as the mission management team chair for the test flight.
Two days prior to launch, the mission management team will assemble to review mission risks and address any lingering preflight concerns. With more than 20 years of human spaceflight experience, Kshatriya will conduct polls at key decision points, providing direction for the relevant operations team. If circumstances during the flight go beyond established decision criteria or flight rules outlined ahead of the mission, the team will assess the situation based on the information available and decide how to respond.
Matt Ramsey, serving as the Artemis II mission manager, will oversee all elements of mission preparedness prior to the mission management team assembly two days before launch and serve as deputy mission management team chair throughout the mission. With more than two decades of experience at NASA, Ramsey managed the SLS (Space Launch System) Engineering Support Center for Artemis I.
Launch control team
The launch control team coordinates launch operations from NASA’s Kennedy Space Center in Florida. Charlie Blackwell-Thompson serves as the agency’s Artemis launch director, responsible for integrating and coordinating launch operations for the SLS, Orion, and Exploration Ground Systems Programs, including developing and implementing plans for countdown, troubleshooting, and timing.
Two days before liftoff, when the countdown for launch begins, Blackwell-Thompson’s team will begin preparations for launch from their console positions in Firing Room 1 in Kennedy’s Launch Control Center. On the day of launch, Blackwell-Thompson and her team will manage countdown progress, propellent loading, and launch commit criteria. The criteria include standards for systems involved in launch, and the team will monitor the rocket until it lifts off from the launchpad.
Rick Henfling, flight director, monitors systems in the Flight Control Center at NASA’s Johnson Space Center in Houston.Credit: NASA Flight control team
From solid rocket booster ignition until the crew is safety extracted from the Orion capsule following splashdown in the Pacific Ocean at the end of their mission, the flight control team oversees operations from the Mission Control Center at NASA’s Johnson Space Center in Houston. Multiple flight directors will take turns leading the team throughout the 10-day mission to support operations around the clock. Jeff Radigan, bringing more than 20 years of International Space Station experience to Artemis II, will serve as lead flight director for the mission. The work for this role begins well in advance of the mission with building mission timelines; developing flight rules and procedures; leading the flight control team through simulations that prepare them for the flight test; and then helping them carry out the plan.
On launch day, the ascent flight control team will be led by Judd Frieling, an Artemis I flight director who also supported more than 20 shuttle missions as a flight controller. Frieling is responsible for overseeing the crew’s ascent to space, including performance of SLS core stage engines, solid rocket boosters, and propulsion systems from the moment of launch until the separation of Orion from the Interim Cryogenic Propulsion Stage. As Orion is propelled toward the Moon, guidance of operations will pass to the next flight director.
At the opposite end of the mission, Rick Henfling will take the lead for Orion’s return to Earth and splashdown. Orion will reenter Earth’s atmosphere at roughly 25,000 mph to about 20 mph for a parachute-assisted splashdown. Drawing from a background supporting space shuttle ascent, entry, and abort operations and 10 years as a space station flight director, Henfling and the team will monitor weather forecasts for landing, watch over Orion’s systems through the dynamic entry phase, and to ensure the spacecraft is safely shutdown before handing over operations to the recovery team.
At any point during the mission, a single voice will speak to the crew in space on behalf of all members of the flight control team: the capsule communicator, or CapCom. The CapCom ensures the crew in space receives clear and concise communication from the teams supporting them on the ground. NASA astronaut Stan Love will serve as the lead CapCom for Artemis II. Love flew aboard STS-122 mission and has acted as CapCom for more than a dozen space station expeditions. He is also part of the astronaut office’s Rapid Prototyping Lab, which played a key role in development of Orion’s displays and controls.
Landing, recovery team
Retrieval of the crew and Orion crew module will be in the hands of the landing and recovery team, led by Lili Villarreal. The team will depart San Diego on a Department of Defense ship, and head to the vicinity of the landing site several days before splashdown for final preparations alongside the U.S. Navy and DOD.
The recovery team is made up of personnel operating from the ship, land, and air to recover both astronauts and the capsule. Decision-making authority during the recovery phase of mission operations belongs to Villarreal, who served as deputy flow director for Artemis I and worked in the operations division for the space station.
The success of Artemis II will pave the way for the next phase of the agency’s campaign, landing on the lunar South Pole region on Artemis III. These teams, along with the four crew members and countless NASA engineers, scientists, and personnel, are driving humanity’s exploration on the Moon, Mars, and beyond.
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By NASA
2 Min Read NASA Seeks Volunteers to Track Artemis II Mission
On the 19th day of the Artemis I mission, Dec. 4, 2022, a camera mounted on the Orion spacecraft captured the Moon just in frame. Credits: NASA NASA seeks volunteers to passively track the Artemis II Orion spacecraft as the crewed mission travels to the Moon and back to Earth.
The Artemis II test flight, a launch of the agency’s SLS (Space Launch System) rocket and Orion spacecraft, will send NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, along with CSA (Canadian Space Agency) astronaut Jeremy Hansen, on an approximately 10-day mission around the Moon.
The mission, targeted for no later than April 2026, will rely on NASA’s Near Space Network and Deep Space Network for primary communications and tracking support throughout its launch, orbit, and reentry. However, with a growing focus on commercialization, NASA wants to further understand industry’s tracking capabilities.
This collaboration opportunity builds upon a previous request released by NASA’s SCaN (Space Communication and Navigation) Program during the Artemis I mission, where ten volunteers successfully tracked the uncrewed Orion spacecraft in 2022 on its journey thousands of miles beyond the Moon and back.
During the Artemis I mission, participants – ranging from international space agencies, academic institutions, commercial companies, nonprofits, and private citizens – attempted to receive Orion’s signal and use their respective ground antennas to track and measure changes in the radio waves transmitted by Orion.
This data will help inform our transition to a commercial-first approach, ultimately strengthening the infrastructure needed to support long-term Moon to Mars objectives.
Kevin Coggins
Deputy Associate Administrator for SCaN
“By offering this opportunity to the broader aerospace community, we can identify available tracking capabilities outside the government,” said Kevin Coggins, NASA’s deputy associate administrator for SCaN at NASA Headquarters in Washington. “This data will help inform our transition to a commercial-first approach, ultimately strengthening the infrastructure needed to support Artemis missions and our long-term Moon to Mars objectives.”
Read the opportunity announcement here: Responses are due by 5 p.m. EDT on Monday, Oct. 27.
NASA’s SCaN Program serves as the management office for the agency’s space communications and navigation systems. More than 100 NASA and non-NASA missions rely on SCaN’s two networks, the Near Space Network and the Deep Space Network, to support astronauts aboard the International Space Station and future Artemis missions, monitor Earth’s weather, support lunar exploration, and uncover the solar system and beyond.
Artemis II will help confirm the systems and hardware needed for human deep space exploration. This mission is the first crewed flight under NASA’s Artemis campaign and is another step toward new U.S.-crewed missions on the Moon’s surface that will help the agency prepare to send American astronauts to Mars.
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Last Updated Aug 27, 2025 EditorGoddard Digital TeamContactJoshua A. Finchjoshua.a.finch@nasa.govLocationGoddard Space Flight Center Related Terms
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