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By NASA
Megan Harvey is a utilization flight lead and capsule communicator, or capcom, in the Research Integration Office at NASA’s Johnson Space Center in Houston. She integrates science payload constraints related to vehicles’ launch and landing schedules. She is also working to coordinate logistics for the return of SpaceX vehicles to West Coast landing sites.
Read on to learn about Harvey’s career with NASA and more!
Megan Harvey talking to a flight director from the Remote Interface Officer console in the Mission Control Center at NASA’s Johnson Space Center in Houston. NASA/Mark Sowa Johnson Space Center is home to the best teams, both on and off the planet!
Megan Harvey
Utilization Flight Lead and Capsule Communicator
Where are you from?
I am from Long Valley, New Jersey.
How would you describe your job to family or friends who may not be familiar with NASA?
Many biological experiments conducted on the space station have specific time constraints, including preparation on the ground and when crew interacts with them on orbit. I help coordinate and communicate those kinds of constraints within the International Space Station Program and with the scientific community. This is especially important because launch dates seldom stay where they are originally planned! I am also currently working in a cross-program team coordinating the logistics for the return to West Coast landings of SpaceX vehicles.
As a capcom, I’m the position in the Mission Control Center in Houston that talks to the crew. That would be me responding to someone saying, “Houston, we have a problem!”
I’ve worked in the Research Integration Office since the beginning of 2024 and have really enjoyed the change of pace after 11 years in the Flight Operations Directorate, where I supported several different consoles for the International Space Station. I’ve kept my capcom certification since 2021, and it is an absolute dream come true every time I get to sit in the International Space Station Flight Control Room. Johnson Space Center is home to the best teams, both on and off the planet!
How long have you been working for NASA?
I have been working for the agency for 13 years.
What advice would you give to young individuals aspiring to work in the space industry or at NASA?
Some things that I have found that helped me excel are:
1. Practice: I am surprised over and over again how simply practicing things makes you better at them, but it works!
2. Preparation: Don’t wing things!
3. Curiosity: Keep questioning!
4. Enthusiasm!
Megan Harvey and friends after biking 25 miles to work. What was your path to NASA?
I had a very circuitous path to NASA. Since going to Space Camp in Huntsville, Alabama, when I was 10 years old, I wanted to be a capcom and work for NASA. I also traveled to Russia in high school and loved it. I thought working on coordination between the Russian and U.S. space programs would be awesome. In pursuit of those dreams, I earned a bachelor’s degree in physics with a minor in Russian language from Kenyon College in Gambier, Ohio, but I had so much fun also participating in music extracurriculars that my grades were not quite up to the standards of working at NASA. After graduation, I worked at a technology camp for a summer and then received a research assistant position in a neuroscience lab at Princeton University in New Jersey.
After a year or so, I realized that independent research was not for me. I then worked in retail for a year before moving to California to be an instructor at Astrocamp, a year-round outdoor education camp. I taught a number of science classes, including astronomy, and had the opportunity to see the Perseverance Mars rover being put together at NASA’s Jet Propulsion Laboratory in Southern California. It dawned on me that I should start looking into aerospace-related graduate programs. After three years at Embry-Riddle in Daytona Beach, Florida, I received a master’s degree in engineering physics and a job offer for a flight control position, initially working for a subcontractor of United Space Alliance. I started in mission control as an attitude determination and control officer in 2012 and kept that certification until the end of 2023. Along the way, I was a Motion Control Group instructor; a Russian systems specialist and operations lead for the Houston Support Group working regularly in Moscow; a Remote Interface Officer (RIO); and supported capcom and the Vehicle Integrator team in a multipurpose support room for integration and systems engineers. I have to pinch myself when I think about how I somehow made my childhood dreams come true.
Is there someone in the space, aerospace, or science industry that has motivated or inspired you to work for the space program? Or someone you discovered while working for NASA who inspires you?
After I switched offices to Houston Support Group/RIO, most of my training was led by Sergey Sverdlin. He was a real character. Despite his gruffness, he and I got along really well. We were very different people, but we truly respected each other. I was always impressed with him and sought out his approval.
Megan Harvey in Red Square in Moscow, Russia. What is your favorite NASA memory?
The most impactful experience I’ve had at NASA was working together with the Increment 68 leads during the days and months following the Soyuz coolant leak. I was increment lead RIO and just happened to be in the Increment Management Center the day of a planned Russian spacewalk. The increment lead RIO is not typically based in the Increment Management Center, but that day, things were not going well. All of our Russian colleagues had lost access to a critical network, and I was troubleshooting with the Increment Manager and the International Space Station Mission Management Team chair.
I was explaining to International Space Station Deputy Program Manager Dina Contella the plan for getting our colleagues access before their off-hours spacewalk when we saw a snowstorm of flakes coming out of the Soyuz on the downlink video on her office’s wall. Those flakes were the coolant. It was incredible watching Dina switch from winding down for the day to making phone call after phone call saying, “I am calling you in.” The Increment Management Center filled up and I didn’t leave until close to midnight that day. The rest of December was a flurry (no pun intended) of intense and meaningful work with the sharpest and most caring people I know.
What do you love sharing about station? What’s important to get across to general audiences to help them understand the benefits to life on Earth?
There is so much to talk about! I love giving insight into the complexities of not only the space station systems themselves, but also the international collaboration of all the teams working to keep the systems and the science running.
If you could have dinner with any astronaut, past or present, who would it be?
I would have dinner with Mae Jemison or Sally Ride. It’s too hard to pick!
Do you have a favorite space-related memory or moment that stands out to you?
I was selected by my management a few years ago to visit a Navy aircraft carrier with the SpaceX Crew-1 crew and some of the Crew-1 team leads. We did a trap landing on the deck and were launched off to go home, both via a C-2 Greyhound aircraft. It was mind blowing! I am also very lucky that I saw the last space shuttle launch from Florida when I was in graduate school.
Megan Harvey and NASA colleagues on the Nimitz aircraft carrier. What are some of the key projects you’ve worked on during your time at NASA? What have been your favorite?
My first increment lead role was RIO for Increment 59 and there was a major effort to update all our products in case of needing to decrew the space station. It was eye-opening to work with the entire increment team in this effort. I really enjoyed all the work and learning and getting to know my fellow increment leads better, including Flight Director Royce Renfrew.
Also, in 2021 I was assigned as the Integration Systems Engineer (ISE) lead for the Nanorack Airlock. I had never worked on a project with so many stakeholders before. I worked close to 100 revisions of the initial activation and checkout flowchart, coordinating with the entire flight control team. It was very cool to see the airlock extracted from NASA’s SpaceX Dragon trunk and installed, but it paled in comparison to the shift when we did the first airlock trash deploy. I supported as lead ISE, lead RIO, and capcom all from the capcom console, sitting next to the lead Flight Director TJ Creamer. I gave a countdown to the robotics operations systems officer commanding the deploy on the S/G loop so that the crew and flight control team could hear, “3, 2, 1, Engage!”
I’ll never forget the satisfaction of working through all the complications with that stellar team and getting to a successful result while also having so much fun.
Megan Harvey at a bouldering gym. What are your hobbies/things you enjoy outside of work?
I love biking, rock climbing, cooking, board games, and singing.
Day launch or night launch?
Night launch!
Favorite space movie?
Space Camp. It’s so silly. And it was the first DVD I ever bought!
NASA “worm” or “meatball” logo?
Worm
Every day, we’re conducting exciting research aboard our orbiting laboratory that will help us explore further into space and bring benefits back to people on Earth. You can keep up with the latest news, videos, and pictures about space station science on the Station Research & Technology news page. It’s a curated hub of space station research digital media from Johnson and other centers and space agencies.
Sign up for our weekly email newsletter to get the updates delivered directly to you.
Follow updates on social media at @ISS_Research on Twitter, and on the space station accounts on Facebook and Instagram.
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By NASA
NASA astronauts Butch Wilmore, Suni Williams, Nick Hague, and Don Pettit show off their ‘Proud to be American’ socks in a photo taken aboard the International Space Station. Photo Credit: NASA Four NASA astronauts will participate in a welcome home ceremony at Space Center Houston after recently returning from missions aboard the International Space Station.
NASA astronauts Nick Hague, Suni Williams, Butch Wilmore, and Don Pettit will share highlights from their missions at 6 p.m. CDT Thursday, May 22, during a free, public event at NASA Johnson Space Center’s visitor center. The astronauts also will recognize key mission contributors during an awards ceremony after their presentation.
Williams and Wilmore launched aboard Boeing’s Starliner spacecraft and United Launch Alliance Atlas V rocket on June 5, 2024, from Space Launch Complex 41 as part of NASA’s Boeing Crew Flight Test. The duo arrived at the space station on June 6. In August, NASA announced the uncrewed return of Starliner to Earth and integrated Wilmore and Williams with the Expedition 71/72 crew and a return on Crew-9.
Hague launched Sept. 28, 2024, with Roscosmos cosmonaut Aleksandr Gorbunov aboard a SpaceX Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida as part of NASA’s SpaceX Crew-9 mission. The next day, they docked to the forward-facing port of the station’s Harmony module.
Hague, Gorbunov, Wilmore, and Williams returned to Earth on March 18, 2025, splashing down safely off the coast of Tallahassee, Florida, in the Gulf of America.
Williams and Wilmore traveled 121,347,491 miles during their mission, spent 286 days in space, and completed 4,576 orbits around Earth. Hague and Gorbunov traveled 72,553,920 miles during their mission, spent 171 days in space, and completed 2,736 orbits around Earth. Hague has logged 374 days in space during two missions. It was the third spaceflight for both Williams and Wilmore. Williams has logged 608 total days in space, and Wilmore has logged 464 days.
Pettit launched aboard the Soyuz MS-26 spacecraft on Sept. 11, 2024, alongside Roscosmos cosmonauts Alexey Ovchinin and Ivan Vagner. The seven-month research mission as an Expedition 72 flight engineer was the fourth spaceflight of Pettit’s career, completing 3,520 orbits of the Earth and a journey of 93.3 million miles. He has logged a total of 590 days in orbit. Pettit and his crewmembers safely landed in Kazakhstan on April 19, 2025 (April 20, 2025, Kazakhstan time).
The Expedition 72 crew dedicated more than 1,000 combined hours to scientific research and technology demonstrations aboard the International Space Station. Their work included enhancing metal 3D printing capabilities in orbit, exploring the potential of stem cell technology for treating diseases, preparing the first wooden satellite for deployment, and collecting samples from the station’s exterior to examine whether microorganisms can survive in the harsh environment of space. They also conducted studies on plant growth and quality, investigated how fire behaves in microgravity, and advanced life support systems, all aimed at improving the health, safety, and sustainability of future space missions. Pettit also used his spare time and surroundings aboard station to conduct unique experiments and captivate the public with his photography. Expedition 72 captured a record one million photos during the mission, showcasing the unique research and views aboard the orbiting laboratory through astronauts’ eyes.
For more than 24 years, people have lived and worked continuously aboard the International Space Station, advancing scientific knowledge, and conducting critical research for the benefit of humanity and our home planet. Space station research supports the future of human spaceflight as NASA looks toward deep space missions to the Moon under the Artemis campaign and in preparation for future human missions to Mars, as well as expanding commercial opportunities in low Earth orbit and beyond.
Learn more about the International Space Station at:
https://www.nasa.gov/station
-end-
Jaden Jennings
Johnson Space Center, Houston
713-281-0984
jaden.r.jennings@nasa.gov
Dana Davis
Johnson Space Center, Houston
281-244-0933
dana.l.davis@nasa.gov
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By NASA
4 min read
Unearthly Plumbing Required for Plant Watering in Space
NASA is demonstrating new microgravity fluids technologies to enable advanced “no-moving-parts” plant-watering methods aboard spacecraft.
Boeing Astronauts Sunita Williams and Butch Wilmore during operations of Plant Water Management-6 (PWM-6) aboard the International Space Station. Image: NASA Crop production in microgravity will be important to provide whole food nutrition, dietary variety, and psychological benefits to astronauts exploring deep space. Unfortunately, even the simplest terrestrial plant watering methods face significant challenges when applied aboard spacecraft due to rogue bubbles, ingested gases, ejected droplets, and myriad unstable liquid jets, rivulets, and interface configurations that arise in microgravity environments.
In the weightlessness of space, bubbles do not rise, and droplets do not fall, resulting in a plethora of unearthly fluid flow challenges. To tackle such complex dynamics, NASA initiated a series of Plant Water Management (PWM) experiments to test capillary hydroponics aboard the International Space Station in 2021. The series of experiments continue to this day, opening the door not only to supporting our astronauts in space with the possibility of fresh vegetables, but also to address a host of challenges in space, such as liquid fuel management, Heating, Ventilation, and Air Conditioning (HVAC), and even urine collection.
The latest PWM hardware (PWM-5 and -6) involves three test units, each consisting of a variable-speed pump, tubing harness, assorted valves and syringes, and either one serial or two parallel hydroponic channels. This latest setup enables a wider range of parameters to be tested—e.g., gas and liquid flow rates, fill levels, inlet/outlet configurations, new bubble separation methods, serial and parallel flows, and new plant root types, numbers, and orders.
Most of the PWM equipment shipped to the space station consists of 3-D printed, flight-certified materials. The crew assembles the various system configurations on a workbench in the open cabin of the station and then executes the experiments, including routine communication with the PWM research team on the ground. All the quantitative data is collected via a single high-definition video camera.
The PWM hardware and procedures are designed to incrementally test the system’s capabilities for hydroponic and ebb and flow, and to repeatedly demonstrate priming, draining, serial/parallel channel operation, passive bubble management, limits of operation, stability during perturbations, start-up, shut-down, and myriad clean plant-insertion, saturation, stable flow, and plant-removal steps.
PWM-5 Hydroponic channel flow on the International Space Station with: (1) packed synthetic plant root model in passive bubble separating hydroponic channel, (2) passive aerator, (3) passive fluid reservoirs for water and nutrient solution balance, (4) passive bubble separator, (5) passive water trap, and (6) passive gas/bubble diverter. The flow is left to right across the channel and the aerated oxygenating bubbly flow is fully separated (no bubbles) by the bubble separator returning only liquid to the ‘root zone.’ The water trap, bubble diverter, root bundle and hydroponic channel dramatically increase the reliability of the plumbing by providing redundant passive bubble separating functions. Image courtesy of J. Moghbeli/NASA PWM-5 and -6 Root Models R1 – R4 from smallest to largest: perfectly wetting polymeric strands modelling Asian Mizuna. Image courtesy of IRPI LLC The recent results of the PWM-5 and -6 technology demonstrations aboard the space station have significantly advanced the technology used for passive plant watering in space. These quantitative demonstrations established hydroponic and ebb and flow watering processes as functions of serial and parallel channel fill levels, various types of engineered plant root models, and pump flow rates—including single-phase liquid flows and gas-liquid two-phase flows.
Critical PWM plumbing elements perform the role of passive gas-liquid separation (i.e., the elimination of bubbles from liquid and vice versa), which routinely occurs on Earth due to gravitational effects. The PWM-5 and -6 hardware in effect replaces the passive role of gravity with the passive roles of surface tension, wetting, and system geometry. In doing so, highly reliable “no-moving-parts” plumbing devices act to restore the illusive sense of up and down in space. For example,
hundreds of thousands of oxygenating bubbles generated by a passive aerator are 100% separated by the PWM bubble separator providing single-phase liquid flow to the hydroponic channel, 100% of the inadvertent liquid carry-over is captured in the passive water trap, and all of the bubbles reaching the bubble diverter are directed to the upper inlet of the hydroponic channel where they are driven ever-upward by the channel geometry, confined by the first plant root, and coalesce leaving the liquid flow as a third, redundant, 100% passive phase-separating mechanism. The demonstrated successes of PWM-5 and -6 offer a variety of ready plug-and-play solutions for effective plant watering in low- and variable-gravity environments, despite the challenging wetting properties of the water-based nutrient solutions used to water plants. Though a variety of root models are demonstrated by PWM-5 and -6, the remaining unknown is the role that real growing plants will play in such systems. Acquiring such knowledge may only be a matter of time.
100% Passive bubbly flow separations in microgravity demonstrated for PWM ‘devices’: a. bubble separator, b. bubble diverter, c. hydroponic channel and root model, and d. water trap. Liquid flows denoted by red arrows, air flows denoted by white arrows. Images courtesy of NASA Project Lead: Dr. Mark Weislogel, IRPI LLC
Sponsoring Organization: Biological and Physical Sciences Division
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Last Updated May 20, 2025 Related Terms
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By NASA
This article is for students grades 5-8.
The International Space Station is a large spacecraft in orbit around Earth. It serves as a home where crews of astronauts and cosmonauts live. The space station is also a unique science laboratory. Several nations worked together to build and use the space station. The space station is made of parts that were assembled in space by astronauts. It orbits Earth at an average altitude of approximately 250 miles. It travels at 17,500 mph. This means it orbits Earth every 90 minutes. NASA is using the space station to learn more about living and working in space. These lessons will make it possible to send humans farther into space than ever before.
How Old Is the Space Station?
The first piece of the International Space Station was launched in November 1998. A Russian rocket launched the Russian Zarya (zar EE uh) control module. About two weeks later, the space shuttle Endeavour met Zarya in orbit. The space shuttle was carrying the U.S. Unity node. The crew attached the Unity node to Zarya.
More pieces were added over the next two years before the station was ready for people to live there. The first crew arrived on Nov. 2, 2000. People have lived on the space station ever since. More pieces have been added over time. NASA and its partners from around the world completed construction of the space station in 2011.
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Words to Know
Airlock: an air-tight chamber that can be pressurized and depressurized to allow access between spaces with different air pressure.
Microgravity: a condition, especially in space orbit, where the force of gravity is so weak that weightlessness occurs.
Module: an individual, self-contained segment of a spacecraft that is designed to perform a particular task.
Truss: a structural frame based on the strong structural shape of the triangle; functions as a beam to support and connect various components.
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How Big Is the Space Station?
The space station has the volume of a six-bedroom house with six sleeping quarters, two bathrooms, a gym, and a 360-degree view bay window. It is able to support a crew of seven people, plus visitors. On Earth, the space station would weigh almost one million pounds. Measured from the edges of its solar arrays, the station covers the area of a football field including the end zones. It includes laboratory modules from the United States, Russia, Japan, and Europe.
What Are the Parts of the Space Station?
In addition to the laboratories where astronauts conduct science research, the space station has many other parts. The first Russian modules included basic systems needed for the space station to function. They also provided living areas for crew members. Modules called “nodes” connect parts of the station to each other.
Stretching out to the sides of the space station are the solar arrays. These arrays collect energy from the sun to provide electrical power. The arrays are connected to the station with a long truss. On the truss are radiators that control the space station’s temperature.
Robotic arms are mounted outside the space station. The robot arms were used to help build the space station. Those arms also can move astronauts around when they go on spacewalks outside. Other arms operate science experiments.
Astronauts can go on spacewalks through airlocks that open to the outside. Docking ports allow other spacecraft to connect to the space station. New crews and visitors arrive through the ports. Astronauts fly to the space station on SpaceX Dragon and Russian Soyuz spacecraft. Robotic spacecraft use the docking ports to deliver supplies
Why Is the Space Station Important?
The space station has made it possible for people to have an ongoing presence in space. Human beings have been living in space every day since the first crew arrived. The space station’s laboratories allow crew members to do research that could not be done anywhere else. This scientific research benefits people on Earth. Space research is even used in everyday life. The results are products called “spinoffs.” Scientists also study what happens to the body when people live in microgravity for a long time. NASA and its partners have learned how to keep a spacecraft working well. All of these lessons will be important for future space exploration.
NASA currently is working on a plan to explore other worlds. The space station is one of the first steps. NASA will use lessons learned on the space station to prepare for human missions that reach farther into space than ever before.
Career Corner
Are you interested in a career that is related to living and working in space? Many different types of jobs make the space station a success. Here are a few examples:
Astronaut: These explorers come from a wide variety of backgrounds including military service, the medical field, science research, and engineering design. Astronauts must have skills in leadership, teamwork, and communications. They spend two years training before they are eligible to be assigned to spaceflight missions.
Microgravity Plant Scientist: These scientists study ways to grow plants in the microgravity environment of space. Growing plants on future space missions could provide food and oxygen. Plant scientists design experiments to be conducted by astronauts on the space station. These test new techniques for maximizing plant growth.
Fitness Trainer: Spending months on the space station takes a toll on astronauts’ bodies. Fitness trainers work with astronauts before, during, and after their space station missions to help keep them strong and healthy. This includes creating workout plans for while they’re living and working in space.
More About the International Space Station
International Space Station Home Page
Spot the Station
Video: #AskNASA What Is the International Space Station?
Read What Is the International Space Station? (Grades K-4)
Explore More For Students Grades 5-8
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