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By NASA
6 Min Read NASA Marshall Reflects on 65 Years of Ingenuity, Teamwork
NASA’s Marshall Space Flight Center in Huntsville, Alabama, is celebrating its 65-year legacy of ingenuity and service to the U.S. space program – and the expansion of its science, engineering, propulsion, and human spaceflight portfolio with each new decade since the NASA field center opened its doors on July 1, 1960.
What many Americans likely call to mind are the “days of smoke and fire,” said Marshall Director Joseph Pelfrey, referring to the work conducted at Marshall to enable NASA’s launch of the first Mercury-Redstone rocket and the Saturn V which lifted Americans to the Moon, the inaugural space shuttle mission, and the shuttle flights that carried the Hubble Space Telescope, Chandra X-ray Observatory, and elements of the International Space Station to orbit. Most recently, he said they’re likely to recall the thunder of NASA’s SLS (Space Launch System), rising into the sky during Artemis I.
NASA’s Space Launch System, carrying the Orion spacecraft, launches on the Artemis I flight test on Nov. 16, 2022. NASA’s Marshall Space Flight Center in Huntsville, Alabama, led development and oversees all work on the new flagship rocket, building on its storied history of propulsion and launch vehicle design dating back to the Redstone and Saturn rockets. The most powerful rocket ever built, SLS is the backbone of NASA’s Artemis program, set to carry explorers back to the Moon in 2026, help establish a permanent outpost there, and make possible new, crewed journeys to Mars in the years to come.NASA/Bill Ingalls Yet all the other days are equally meaningful, Pelfrey said, highlighting a steady stream of milestones reflecting the work of Marshall civil service employees, contractors, and industry partners through the years – as celebrated in a new “65 Years of Marshall” timeline.
“The total sum of hours, contributed by tens of thousands of men and women across Marshall’s history, is incalculable,” Pelfrey said. “Together they’ve blended legacy with innovation – advancing space exploration and scientific discovery through collaboration, engineering excellence, and technical solutions. They’ve invented and refined technologies that make it possible to safely live and work in space, to explore other worlds, and to help safeguard our own.
The total sum of hours, contributed by tens of thousands of men and women across Marshall’s history, is incalculable.
Joseph Pelfrey
Marshall Space Flight Center Director
“Days of smoke and fire may be the most visible signs, but it’s the months and years of preparation and the weeks of post-launch scientific discovery that mark the true dedication, sacrifice, and monumental achievements of this team.”
Reflecting on Marshall history
Marshall’s primary task in the 1960s was the development and testing of the rockets that carried the first American astronaut to space, and the much larger and more technically complex Saturn rocket series, culminating in the mighty Saturn V, which carried the first human explorers to the Moon’s surface in 1969.
“Test, retest, and then fly – that’s what we did here at the start,” said retired engineer Harry Craft, who was part of the original U.S. Army rocket development team that moved from Fort Bliss, Texas, to Huntsville to begin NASA’s work at Marshall. “And we did it all without benefit of computers, working out the math with slide rules and pads of paper.”
The 138-foot-long first stage of the Saturn V rocket is lowered to the ground following a successful static test firing in fall 1966 at the S-1C test stand at NASA’s Marshall Space Flight Center in Huntsville, Alabama. The Saturn V, developed and managed at Marshall, was a multi-stage, multi-engine launch vehicle that stood taller than the Statue of Liberty and lofted the first Americans to the Moon. Its success helped position Marshall as an aerospace leader in propulsion, space systems, and launch vehicle development.NASA “Those were exciting times,” retired test engineer Parker Counts agreed. He joined Marshall in 1963 to conduct testing of the fully assembled and integrated Saturn first stages. It wasn’t uncommon for work weeks to last 10 hours a day, plus weekend shifts when deadlines were looming.
Counts said Dr. Wernher von Braun, Marshall’s first director, insisted staff in the design and testing organizations be matched with an equal number of engineers in Marshall’s Quality and Reliability Assurance Laboratory.
“That checks-and-balances engineering approach led to mission success for all 32 of the Saturn family of rockets,” said Counts, who went on to support numerous other propulsion programs before retiring from NASA in 2003.
“We worked with the best minds and best equipment available, pushing the technology every day to deliver the greatest engineering achievement of the 20th century,” said instrumentation and electronics test engineer Willie Weaver, who worked at Marshall from 1960 to 1988 – and remains a tour guide at its visitor center, the U.S. Space & Rocket Center.
We worked with the best minds and best equipment available, pushing the technology every day to deliver the greatest engineering achievement of the 20th century.
Willie Weaver
Former Marshall Space Flight Center Employee
The 1970s at Marshall were a period of transition and expanded scientific study, as NASA ended the Apollo Program and launched the next phase of space exploration. Marshall provided critical work on the first U.S. space station, Skylab, and led propulsion element development and testing for NASA’s Space Shuttle Program.
Marshall retiree Jim Odom, a founding engineer who got his start launching NASA satellites in the run-up to Apollo, managed the Space Shuttle External Tank project. The role called for weekly trips to NASA’s Michoud Assembly Facility in New Orleans, which has been managed by Marshall since NASA acquired the government facility in 1961. The shuttle external tanks were manufactured in the same bays there where NASA and its contractors built the Saturn rockets.
This photograph shows the liquid hydrogen tank and liquid oxygen tank for the Space Shuttle external tank (ET) being assembled in the weld assembly area of the Michoud Assembly Facility (MAF). The ET provides liquid hydrogen and liquid oxygen to the Shuttle’s three main engines during the first eight 8.5 minutes of flight. At 154-feet long and more than 27-feet in diameter, the ET is the largest component of the Space Shuttle, the structural backbone of the entire Shuttle system, and the only part of the vehicle that is not reusable. The ET is manufactured at the Michoud Assembly Facility near New Orleans, Louisiana, by the Martin Marietta Corporation under management of the Marshall Space Flight Center.NASA “We didn’t have cellphones or telecon capabilities yet,” Odom recalled. “I probably spent more time with the pilot of the twin-engine plane in those days than I did with my wife.”
Marshall’s shuttle propulsion leadership led to the successful STS-1 mission in 1981, launching an era of orbital science exemplified by NASA’s Spacelab program.
“Spacelab demonstrated that NASA could continue to achieve things no one had ever done before,” said Craft, who served as mission manager for Spacelab 1 in 1983 – a highlight of his 40-year NASA career. “That combination of science, engineering, and global partnership helped shape our goals in space ever since.”
Engineers in the X-ray Calibration Facility at NASA’s Marshall Space Flight Center in Huntsville, Alabama, work to integrate elements of the Chandra X-ray Observatory in this March 1997 photo. Chandra was lifted to orbit by space shuttle Columbia on July 23, 1999, the culmination of two decades of telescope optics, mirror, and spacecraft development and testing at Marshall. In the quarter century since, Chandra has delivered nearly 25,000 detailed observations of neutron stars, supernova remnants, black holes, and other high-energy objects, some as far as 13 billion light-years distant. Marshall continues to manage the program for NASA. NASA Bookended by the successful Hubble and Chandra launches, the 1990s also saw Marshall deliver the first U.S. module for the International Space Station, signaling a transformative new era of human spaceflight.
Odom, who retired in 1989 as associate administrator for the space station at NASA Headquarters, reflects on his three-decade agency career with pride.
“It was a great experience, start to finish, working with the teams in Huntsville and New Orleans and our partners nationwide and around the globe, meeting each new challenge, solving the practical, day-to-day engineering and technology problems we only studied about in college,” he said.
Shrouded for transport, a 45-foot segment of the International Space Station’s “backbone” truss rolls out of test facilities at NASA’s Marshall Space Flight Center in Huntsville, Alabama, in July 2000, ready to be flown to the Kennedy Space Center in Florida for launch. Marshall played a key role in the development, testing, and delivery of the truss and other critical space station modules and structural elements, as well as the station’s air and water recycling systems and science payload hardware. Marshall’s Payload Operations Integration Center also continues to lead round-the-clock space station science. NASA That focus on human spaceflight solutions continued into the 21st century. Marshall delivered additional space station elements and science hardware, refined its air and water recycling systems, and led round-the-clock science from the Payload Operations Integration Center. Marshall scientists also managed the Gravity Probe Band Hinode missions and launched NASA’s SERVIR geospatial observation system. Once primary space stationconstruction – and the 40-year shuttle program – concluded in the 2010s, Marshall took on oversight of NASA’s Space Launch System, led James Webb Space Telescope mirror testing, and delivered the orbiting Imaging X-ray Polarimetry Explorer.
As the 2020s continue, Marshall meets each new challenge with enthusiasm and expertise, preparing for the highly anticipated Artemis II crewed launch and a host of new science and discovery missions – and buoyed by strong industry partners and by the Huntsville community, which takes pride in being home to “Rocket City USA.”
“Humanity is on an upward, outward trajectory,” Pelfrey said. “And day after day, year after year, Marshall is setting the course to explore beyond tomorrow’s horizon.”
Read more about Marshall and its 65-year history:
https://www.nasa.gov/marshall
Hannah Maginot
Marshall Space Flight Center, Huntsville, Ala.
256-544-0034
hannah.l.maginot@nasa.gov
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By NASA
For more than a decade, Tristan McKnight has been a driving force behind some of NASA’s most iconic events, orchestrating the behind-the-scenes magic that brings each historic moment to life while sharing the agency’s advancements with the public.
As a multimedia producer on the audiovisual team at Johnson Space Center in Houston, McKnight produces and directs live broadcasts and manages event planning, coordination, and execution. From overseeing resources, mitigating risks, and communicating with stakeholders, he ensures every detail aligns seamlessly.
Official portrait of Tristan McKnight.NASA/Josh Valcarcel McKnight has played an integral role in the audiovisual team’s coverage of major events including the Artemis II crew announcement, where NASA revealed the astronauts who will venture around the Moon and back, to Johnson’s 2023 Open House, which celebrated the agency’s 65th anniversary and the 25th anniversary of the International Space Station’s operations. These achievements highlight key milestones in human space exploration.
A standout achievement was contributing to the Dorothy Vaughan Center in Honor of the Women of Apollo naming ceremony, held on the eve of the 55th anniversary of the Apollo 11 Moon landing. The event honored the unsung heroes who made humanity’s first steps on the Moon possible.
The team’s dedication and passion are a testament to their commitment to sharing NASA’s legacy with the world.
“Not only have these events been impactful to Johnson, but they have also resonated across the entire agency,” McKnight said. “That is what I’m most proud of!”
Tristan McKnight at the 45th Annual Original Martin Luther King Jr. Day Parade in downtown Houston.NASA/James Blair One of McKnight’s most memorable events was the 2023 “Back in the Saddle,” an annual tradition designed to refocus Johnson’s workforce at the start of a new year and renew the center’s commitment to safety and mission excellence. McKnight recalled how the speaker transformed Johnson’s Teague Auditorium into a venue filled with drum kits, inspiring messages, and lighting displays. Each audience member, drumsticks in hand, participated in a lesson on teamwork and synchronization to create a metaphor for working in harmony toward a shared goal.
Like many high-achieving professionals. McKnight has faced moments of self-doubt. Then he realized that he is exactly where he is supposed to be. “As I settled into my role, I recognized that my contributions matter and simply being true to who I am adds value to the Johnson community,” he said.
Tristan McKnight (right) receives a Group Special Act Award from Johnson Space Center Director Vanessa Wyche for his contributions to the Dorothy Vaughn in Honor of the Women of Apollo naming ceremony.NASA Each day brings its own set of challenges, ranging from minor issues like communication gaps and scheduling conflicts to major obstacles like technology failures. One of McKnight’s most valuable lessons is recognizing that there is no one-size-fits-all solution, and each situation requires a thoughtful analysis.
McKnight understands the importance of the “check-and double-check,” a philosophy he considers crucial when working with technology. “Taking the extra time to do your due diligence, or even having someone else take a look, can make all the difference,” he said.
“The challenges I’ve faced helped me grow as a problem solver and taught me valuable lessons on resilience and adaptability in the workplace,” he said. McKnight approaches obstacles with a level head, focusing on effective solutions rather than dwelling on the problem.
Tristan McKnight (left) with his daughter Lydia McKnight and Johnson’s External Relations Director Arturo Sanchez at the 2024 Bring Your Youth To Work Day. NASA/Helen Arase Vargas As humanity looks to the stars, McKnight is energized about the future of exploration, particularly advancements in spacesuit and rocket technology that will enable us to travel farther, faster, and safer than ever before. His work, though grounded on Earth, helps create the inspiration that fuels these bold endeavors.
“My hope for the next generation is that they dive deeper into their curiosity—exploring not only the world around them but also the Moon, planets, and beyond,” he said. “I also hope they carry forward the spirit of resilience and a commitment to making the world a better place for all.”
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By NASA
On Feb. 11, 2000, space shuttle Endeavour took to the skies on its 14th trip into space on the Shuttle Radar Topography Mission (SRTM). The international STS-99 crew included Commander Kevin Kregel, Pilot Dominic Gorie, and Mission Specialists Gerhard Thiele of Germany representing the European Space Agency, Janet Kavandi, Janice Voss, who served as payload commander on the mission, and Mamoru Mohri of the National Space Development Agency (NASDA) of Japan, now the Japan Aerospace Exploration Agency.
During their 11-day mission, the astronauts used the radar instruments in Endeavour’s payload bay to obtain elevation data on a near global scale. The data produced the most complete, high-resolution digital elevation model of the Earth. The SRTM comprised a cooperative effort among NASA with the Jet Propulsion Laboratory (JPL) in Pasadena, California, managing the project, the Department of Defense’s National Imagery and Mapping Agency, the German space agency, and the Italian space agency. Prior to SRTM, scientists had a more detailed topographic map of Venus than of the Earth, thanks to the Magellan radar mapping mission.
The STS-99 crew patch. Official photo of the STS-99 crew of Janice Voss, left, Mamoru Mohri of the National Space Development Agency of Japan, now the Japan Aerospace Exploration Agency, Kevin Kregel, Dominic Gorie, Gerhard Thiele of Germany representing the European Space Agency, and Janet Kavandi. The Shuttle Radar Topography Mission patch. Schematic of the Space Radar Topography Mission payloads including the deployed mast. The mast antenna during preflight processing. NASA assigned the STS-99 crew in October 1998. For Kregel, selected by NASA as an astronaut in 1992, STS-99 marked his fourth trip to space, having served as pilot on STS-70 and STS-78 and commanded STS-87. Gorie and Kavandi, both selected in 1994, previously flew together as pilot and mission specialist, respectively, on STS-91, the final Shuttle Mir docking mission. Voss, selected in 1990, served as a mission specialist on STS-57 and STS-63, and as payload commander on STS-83 and STS-94. NASDA selected Mohri as an astronaut in 1985 and he previously flew as a payload specialist on STS-47, the Spacelab-J mission. Selected as an astronaut by the German space agency in 1987, Thiele joined the European Astronaut Corps in 1998, completing his first spaceflight on STS-99.
The SRTM used an innovative technique called radar interferometry to image the Earth’s landmasses at resolutions up to 30 times greater than previously achieved. Two of the synthetic aperture radar instruments comprising the SRTM payload had flown previously, on the STS-59 Shuttle Radar Laboratory-1 (SRL-1) and the STS-68 SRL-2 missions in April and October 1994, respectively. A second receiver antenna, placed at the end of a 200-foot deployable mast, enabled the interferometry during SRTM.
The SRTM payload in Endeavour’s cargo bay in the orbiter processing facility. Endeavour rolls out to Launch Pad 39A. The STS-99 crew walks out of crew quarters for the van ride to the launch pad. Workers rolled Endeavour to the Vehicle Assembly Building on Dec. 2 for mating with its external tank and solid rocket boosters, and then out to Launch Pad 39A on Dec. 13. The astronauts traveled to Kennedy to participate in the Terminal Countdown Demonstration Test Jan. 11-14, returning afterwards to Houston for final training. They traveled back to Kennedy on Jan. 27 for the first launch attempt four days later. After two launch attempts, the STS-99 mission prepared to liftoff on Feb. 11, 2000.
Liftoff! Space shuttle Endeavour takes to the skies to begin the STS-99 mission. At 12:43 p.m. EST, Endeavour thundered into the sky from Kennedy’s Launch Pad 39A to begin the STS-99 mission. Thirty-seven minutes later, a brief firing of the orbiter’s two engines placed Endeavour in the proper 145-mile orbit for the radar scanning.
The SRTM instruments in Endeavour’s payload bay with the mast holding the second antenna receiver deployed at right. The antenna at the end of the deployed mast. STS-99 astronauts Janet Kavandi, left, Dominic Gorie, and Mamoru Mohri in Endeavour’s middeck. Astronaut Janice Voss in the commander’s seat on Endeavour’s flight deck. Astronauts Kevin Kregel, left, and Gerhard Thiele on Endeavour’s flight deck. Shortly after reaching orbit, the crew opened the payload bay doors and deployed the shuttle’s radiators. Kavandi and Thiele turned on the instruments, deployed the 200-foot mast, and conducted initial checkouts of the radars. The crew split into two shifts to enable data collection around the clock during the mission. After overseeing the initial activation of the radars, the red shift of Kregel, Kavandi, and Thiele began their first sleep period as the blue shift of Gorie, Voss, and Mohri picked up with activation and began the first data takes.
The major crew activity for SRTM involved changing tapes every 30 minutes. The SRTM generated 332 high density tapes during more than 222 hours of data collection and these recordings covered 99.96 percent of the planned observations. Data collection finished on the mission’s 10th flight day, after which the astronauts reeled the mast back into its container in the payload bay.
EarthKAM image of the greater Boston area. The EarthKAM camera mounted in a space shuttle window. STS-99 crew Earth observation photograph of El Paso, Texas, and Ciudad Juarez, Mexico. STS-99 crew Earth observation photograph of the Galapagos Islands. STS-99 crew Earth observation photograph of the greater New York area. STS-99 crew Earth observation photograph of Erg Chech, or sand sea, in the Algerian Sahara. NASA’s EarthKAM program enabled middle school students to remotely take photographs of the Earth using an electronic still camera mounted in one of the shuttle’s windows. The University of California at San Diego houses the control center for EarthKAM, linked with middle schools via the Internet. Students choose Earth targets of interest, and the camera takes photos of that region as the shuttle passes overhead. A then-record 75 schools from around the world participated in the EarthKAM project on STS-99, the camera returning 2,715 images of the Earth.
The STS-99 astronauts also spent time taking photographs of the Earth using handheld cameras and the high inclination orbit enabled views of some parts of the Earth rarely seen by shuttle astronauts.
The six-person STS-99 crew pose for their inflight photo. Kevin Kregel guides Endeavour to a smooth touchdown on the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida. The STS-99 crew poses with NASA Administrator Daniel Goldin under Endeavour at the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida. Kevin Kregel addresses the crowd at Houston’s Ellington Field during the welcome home ceremony for the STS-99 crew. On Feb. 22, the crew closed Endeavour’s payload bay doors, donned their launch and entry suits, and strapped themselves into their seats for entry and landing. Kregel piloted Endeavour to a smooth landing on Kennedy’s Shuttle Landing Facility. The crew had flown 181 orbits around the Earth in 11 days, 5 hours, and 39 minutes. Enjoy the crew narrate a video about the STS-99 mission.
Postscript
Final coverage map for the SIR-C radar, indicating 99.96 percent coverage of planned land mass targets, with many areas imaged more than once.
False-color image generated from SRTM data of the island of Oahu. False-color image generated from SRTM data of Mt. Cotopaxi in Ecuador, the tallest active volcano in the world. During the 11-day mission, SRTM collected more than one trillion data points, generating 12.3 terabytes of 3-D data of the Earth. Earnest Paylor, SRTM program scientist at NASA Headquarters in Washington, D.C., called the mission “a magnificent accomplishment.” He cited that SRTM imaged by radar equatorial regions of the Earth previously unmapped due to constant cloud cover.
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By NASA
NASA Blue mach diamonds from the main engine nozzles and bright exhaust from the solid rocket boosters mark the successful launch of space shuttle Endeavour 25 years ago on Feb. 11, 2000. The STS-99 mission crew – including astronauts from NASA, the National Space Development Agency of Japan (NASDA), and the European Space Agency (ESA) – were aboard the shuttle.
This mission saw the deployment of the Shuttle Radar Topography Mission mast and the antenna turned to its operation position. After a successful checkout of the radar systems, mapping began less than 12 hours after launch. Crewmembers split into two shifts so they could work around the clock.
Also aboard Endeavour was a student experiment called EarthKAM, which took 2,715 digital photos during the mission through an overhead flight-deck window. The NASA-sponsored program lets middle school students select photo targets and receive the images via the Internet.
Image credit: NASA
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