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By Amazing Space
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By NASA
Teresa Sindelar always knew she wanted to be a part of human spaceflight, but she was unsure how to make that dream a reality until a chance encounter with former NASA astronaut Tom Stafford when she was 11 years old.
The pair met in a local jewelry shop near Sindelar’s Nebraska home, where Gen. Stafford was signing autographs. In addition to his photo, Gen. Stafford gave Sindelar a valuable tip – she should check out the Kansas Cosmosphere, a space museum in Hutchinson, Kansas. “I proceeded to attend every camp the Cosmosphere offered as a student, interned during college, and worked there full time while earning my graduate degree,” Sindelar said.
Official portrait of Teresa Sindelar.NASA She discovered a passion for teaching and mentoring young students through her work in the museum’s education department and a stint as a high school science teacher. When she began looking for opportunities at NASA, she sought a position that melded instruction with technical work. “I like pouring into others and watching them grow,” she said.
Today, Sindelar is a chief training officer (CTO) within the Flight Operations Directorate at NASA’s Johnson Space Center in Houston. Along with her fellow CTOs, Sindelar oversees the correct and complete training of NASA astronauts, crew members representing international partners, and all flight controllers. “I put the pieces together,” she said. “It is my job to make sure instructors, schedulers, outside partners, facility managers, and others are all in sync.” She added that CTOs have a unique position because they see the big picture of a training flow and understand the long-term training goals and objectives.
Teresa Sindelar received a 2025 Space Flight Awareness Program Honoree Award, presented by NASA astronaut Randy Bresnik.NASA “I get to do a lot of cool things and go to a lot of cool places,” she said, noting that the training facilities at Johnson and other NASA centers, as well as facilities managed by international partners, are top-notch. While she does enjoy watching astronauts work through problems and learn new systems, she has a special fondness for flight controller training and mentoring young professionals. “What fills my cup the most is seeing a brand-new employee right out of college blossom into a confident flight controller, do their job well, and make our missions better,” she said. “I like knowing that I had something to do with that.”
Sindelar has been part of the Johnson team since 2010 and worked as an educator in what was then called the center’s Office of Education and as a crew training instructor in the Space Medicine Operations Directorate before becoming a CTO. In March 2025, Sindelar received a Space Flight Awareness Program Honoree Award for her outstanding leadership in the Private Astronaut Mission (PAM) program, which is an important component of NASA’s strategy for enabling a robust and competitive commercial economy in low Earth orbit. As the lead CTO for the third PAM, Axiom Mission 3, Sindelar managed training while identifying critical inefficiencies, enhancing mission safety and performance. She spearheaded a key stakeholder retreat to streamline operations, reorganized training resources for improved accessibility, and implemented efficiency improvements that optimized mission support. Sindelar’s work was recognized during an award ceremony at NASA’s Kennedy Space Center in Florida, and she got to attend the launch of NASA’s SpaceX Crew-10 mission as a special guest.
In her 15 years with the agency, she has learned the importance of leading by example. “My team needs to see that I meet the bar I set,” she said. “Leading is about motivating your people so they are committed, not just compliant.”
Teresa Sindelar (front row, third from left) and her Space Medicine Operations crew training team with the crew members of Expedition 48.NASA Keeping a team motivated and on track is particularly important to training success and safety. “We only get a matter of months to train astronauts to do the most hazardous activities that humans have done, or to train flight controllers who literally have the mission and the lives of astronauts in their hands,” Sindelar said, adding that they cannot afford to have an unfocused or indifferent team.
Sindelar observed that Johnson’s training team is acutely aware of their responsibilities. “We live and work in the same communities as the crew members,” she said. “We see them at school functions, at the grocery store, at the park. We know their families are counting on us to bring their loved ones home safely.”
She has also learned that her voice matters. “When I was a young professional, I just never felt I could be influential, but the only person holding me back was me,” she said. “I had to learn to trust in my own instincts. That was definitely outside of my comfort zone.” She credits her mentors with helping her build confidence and knowing when and how to speak up. “I have had many giants of the spaceflight community mold and shape me in my career, from my counselors at the Cosmosphere all the way to flight directors and astronauts,” she said. “It is my privilege to learn from them, and I am grateful to each of them.”
Outside of work, Sindelar uses her voice in a different way – as part of her church choir. She also plays piano, stating that she is as passionate about music and volunteerism as she is about human spaceflight. She is a member of the Friendswood Volunteer Fire Department, as well, serving on its rehab team and as the department’s chaplain
Teresa Sindelar (second from right) and her family with a Friendswood Volunteer Fire Department fire engine. Image courtesy of Teresa Sindelar As NASA prepares to return humans to the Moon and journey on to Mars, Sindelar hopes she has taught the next generation of explorers enough so they can show the world the wonders of the universe. “This next generation will see and do things my generation never even thought of,” she said, adding that it is time for them to start leading. “Use your voice. Take care of each other along the way. Reach out and help the next one in line.”
Sindelar keeps a reminder of that important message on her desk: the picture Gen. Stafford signed all those years ago.
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By Space Force
The U.S. Space Force released its inaugural International Partnership Strategy July 8, outlining a comprehensive vision for deepening collaboration with allies and partners to ensure a secure, stable and sustainable space domain.
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By Space Force
The new facility is enabling Guardians and mission partners to seamlessly monitor space-based sensors and make rapid, data-driven decisions that enhance missile warning and threat responses for the joint force.
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By NASA
The four crew members of NASA’s SpaceX Crew-11 mission to the International Space Station train inside a SpaceX Dragon spacecraft in Hawthorne, California. From left to right: Roscosmos cosmonaut Oleg Platonov, NASA astronauts Mike Fincke and Zena Cardman, and JAXA astronaut Kimiya Yui.Credit: SpaceX NASA and its partners will discuss the upcoming crew rotation to the International Space Station during a pair of news conferences on Thursday, July 10, from the agency’s Johnson Space Center in Houston.
First is an overview news conference at 12 p.m. EDT with mission leadership discussing final launch and mission preparations on the agency’s YouTube channel.
Next, crew will participate in a news conference at 2 p.m. on NASA’s YouTube channel, followed by individual astronaut interviews at 3 p.m. This is the final media opportunity with Crew-11 before they travel to NASA’s Kennedy Space Center in Florida for launch.
The Crew-11 mission, targeted to launch in late July/early August, will carry NASA astronauts Zena Cardman and Mike Fincke, JAXA (Japan Aerospace Exploration Agency) astronaut Kimiya Yui, and Roscosmos cosmonaut Oleg Platonov to the orbiting laboratory. The crew will launch aboard a SpaceX Dragon spacecraft on the company’s Falcon 9 rocket from Launch Complex 39A.
United States-based media seeking to attend in person must contact the NASA Johnson newsroom no later than 5 p.m. on Monday, July 7, at 281-483-5111 or jsccommu@mail.nasa.gov. A copy of NASA’s media accreditation policy is available online.
Any media interested in participating in the news conferences by phone must contact the Johnson newsroom by 9:45 a.m. the day of the event. Media seeking virtual interviews with the crew must submit requests to the Johnson newsroom by 5 p.m. on Monday, July 7.
Briefing participants are as follows (all times Eastern and subject to change based on real-time operations):
12 p.m.: Mission Overview News Conference
Steve Stich, manager, Commercial Crew Program, NASA Kennedy Bill Spetch, operations integration manager, International Space Station Program, NASA Johnson NASA’s Space Operations Mission Directorate representative Sarah Walker, director, Dragon Mission Management, SpaceX Mayumi Matsuura, vice president and director general, Human Spaceflight Technology Directorate, JAXA 2 p.m.: Crew News Conference
Zena Cardman, Crew-11 commander, NASA Mike Fincke, Crew-11 pilot, NASA Kimiya Yui, Crew-11 mission specialist, JAXA Oleg Platonov, Crew-11 mission specialist, Roscosmos 3 p.m.: Crew Individual Interview Opportunities
Crew-11 members available for a limited number of interviews
Selected as a NASA astronaut in 2017, Cardman will conduct her first spaceflight. The Williamsburg, Virginia, native holds a bachelor’s degree in Biology and a master’s in Marine Sciences from the University of North Carolina at Chapel Hill. At the time of selection, she was pursuing a doctorate in geosciences. Cardman’s geobiology and geochemical cycling research focused on subsurface environments, from caves to deep sea sediments. Since completing initial training, Cardman has supported real-time station operations and lunar surface exploration planning. Follow @zenanaut on X and @zenanaut on Instagram.
This will be Fincke’s fourth trip to the space station, having logged 382 days in space and nine spacewalks during Expedition 9 in 2004, Expedition 18 in 2008, and STS-134 in 2011, the final flight of space shuttle Endeavour. Throughout the past decade, Fincke has applied his expertise to NASA’s Commercial Crew Program, advancing the development and testing of the SpaceX Dragon spacecraft and Boeing Starliner spacecraft toward operational certification. The Emsworth, Pennsylvania, native is a graduate of the United States Air Force Test Pilot School and holds bachelors’ degrees from the Massachusetts Institute of Technology, Cambridge, in both aeronautics and astronautics, as well as Earth, atmospheric and planetary sciences. He also has a master’s degree in aeronautics and astronautics from Stanford University in California. Fincke is a retired U.S. Air Force colonel with more than 2,000 flight hours in over 30 different aircraft. Follow @AstroIronMike on X and Instagram.
With 142 days in space, this will be Yui’s second trip to the space station. After his selection as a JAXA astronaut in 2009, Yui flew as a flight engineer for Expedition 44/45 and became the first Japanese astronaut to capture JAXA’s H-II Transfer Vehicle using the station’s robotic arm. In addition to constructing a new experimental environment aboard Kibo, he conducted a total of 21 experiments for JAXA. In November 2016, Yui was assigned as chief of the JAXA Astronaut Group. He graduated from the School of Science and Engineering at the National Defense Academy of Japan in 1992. He later joined the Air Self-Defense Force at the Japan Defense Agency (currently the Ministry of Defense). In 2008, Yui joined the Air Staff Office at the Ministry of Defense as a lieutenant colonel. Follow @astro_kimiya on X.
The Crew-11 mission also will be Platonov’s first spaceflight. Before his selection as a cosmonaut in 2018, Platonov earned a degree in engineering from Krasnodar Air Force Academy in aircraft operations and air traffic management. He also earned a bachelor’s degree in state and municipal management in 2016 from the Far Eastern Federal University in Vladivostok, Russia. Assigned as a test cosmonaut in 2021, he has experience in piloting aircraft, zero gravity training, scuba diving, and wilderness survival.
For more information about the mission, visit:
https://www.nasa.gov/commercialcrew
-end-
Claire O’Shea / Joshua Finch
Headquarters, Washington
202-358-1100
claire.a.o’shea@nasa.gov / joshua.a.finch@nasa.gov
Sandra Jones / Joseph Zakrzewski
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov / Joseph.a.zakrzewski@nasa.gov
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