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By NASA
The SpaceX Falcon 9 rocket carrying the Dragon spacecraft lifts off from Launch Complex 39A at NASA’s Kennedy Space Center in Florida on Monday, April 21, 2025, on the company’s 32nd commercial resupply services mission for the agency to the International Space Station. Liftoff was at 4:15 a.m. EDT. SpaceX NASA and SpaceX are targeting 2:45 a.m. EDT, Sunday, Aug. 24, for the next launch to deliver science investigations, supplies, and equipment to the International Space Station. This is the 33rd SpaceX commercial resupply services mission to the orbital laboratory for NASA.
Filled with more than 5,000 pounds of supplies, a SpaceX Dragon spacecraft on a Falcon 9 rocket will lift off from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida. Dragon will dock autonomously about 7:30 a.m. on Monday, Aug. 25, to the forward port of the space station’s Harmony module.
Watch agency launch and arrival coverage on NASA+, Netflix, Amazon Prime, and more. Learn how to watch NASA content through a variety of platforms, including social media.
In addition to food, supplies, and equipment for the crew, Dragon will deliver several experiments, including bone-forming stem cells for studying bone loss prevention and materials to 3D print medical implants that could advance treatments for nerve damage on Earth. Dragon also will deliver bioprinted liver tissue to study blood vessel development in microgravity and supplies to 3D print metal cubes in space. Research conducted aboard the space station advances future space exploration – including Artemis missions to the Moon and astronaut missions Mars – and provides multiple benefits to humanity.
In addition, Dragon will perform a reboost demonstration of station to maintain its current altitude. The hardware, located in the trunk of Dragon, contains an independent propellant system separate from the spacecraft to fuel two Draco engines using existing hardware and propellant system design. The boost kit will demonstrate the capability to help sustain the orbiting lab’s altitude starting in September with a series of burns planned periodically throughout the fall of 2025. During NASA’s SpaceX 31st commercial resupply services mission, the Dragon spacecraft performed its first demonstration of these capabilities on Nov. 8, 2024.
The Dragon spacecraft is scheduled to remain at the space station until December when it will depart and return to Earth with research and cargo, splashing down in the Pacific Ocean off the coast of California.
NASA’s mission coverage is as follows (all times Eastern and subject to change based on real-time operations):
Tuesday, Aug. 19:
1 p.m. – International Space Station National Laboratory Science Webinar with the following participants:
Heidi Parris, associate program scientist, NASA’s International Space Station Program Research Office Michael Roberts, chief scientific officer, International Space Station National Laboratory James Yoo, assistant director, Wake Forest Institute of Regenerative Medicine Tony James, chief architect for science and space, Red Hat Abba Zubair, medical director and scientist, Mayo Clinic Arun Sharma, director, Center for Space Medicine Research, Cedars-Sinai Medical Center Media who wish to participate must register for Zoom access no later than one hour before the start of the webinar.
The conference will stream live on the International Space Station National Lab’s website.
Friday, Aug. 22:
11:30 a.m. – Prelaunch media teleconference with the following participants:
Bill Spetch, operations integration manager, NASA’s International Space Station Program Heidi Parris, associate program scientist, NASA’s International Space Station Program Research Office Sarah Walker, director, Dragon Mission Management, SpaceX Media who wish to participate by phone must request dial-in information by 10 a.m. Aug. 22, by emailing NASA Kennedy Space Center’s newsroom at: ksc-newsroom@mail.nasa.gov.
Audio of the media teleconference will stream live on the agency’s YouTube channel.
Sunday, Aug. 24
2:25 a.m. – Launch coverage begins on NASA+, Netflix, and Amazon Prime.
2:45 a.m. – Launch
Monday, Aug. 25:
6 a.m. – Arrival coverage begins on NASA+, Netflix, and Amazon Prime.
7:30 a.m. – Docking
NASA website launch coverage
Launch day coverage of the mission will be available on the NASA website. Coverage will include live streaming and blog updates beginning no earlier than 2:25 a.m. Sunday, Aug. 24, as the countdown milestones occur. On-demand streaming video on NASA+ and photos of the launch will be available shortly after liftoff. For questions about countdown coverage, contact the NASA Kennedy newsroom at 321-867-2468. Follow countdown coverage on our International Space Station blog for updates.
Attend Launch Virtually
Members of the public can register to attend this launch virtually. NASA’s virtual guest program for this mission also includes curated launch resources, notifications about related opportunities or changes, and a stamp for the NASA virtual guest passport following launch.
Watch, Engage on Social Media Let people know you’re watching the mission on X, Facebook, and Instagram by following and tagging these accounts:
X: @NASA, @NASAKennedy, @NASASocial, @Space_Station, @ISS_CASIS
Facebook: NASA, NASAKennedy, ISS, ISS National Lab
Instagram: @NASA, @NASAKennedy, @ISS, @ISSNationalLab
Coverage en Espanol
Did you know NASA has a Spanish section called NASA en Espanol? Check out NASA en Espanol on X, Instagram, Facebook, and YouTube for additional mission coverage.
Para obtener información sobre cobertura en español en el Centro Espacial Kennedy o si desea solicitar entrevistas en español, comuníquese con Antonia Jaramillo o Messod Bendayan a: antonia.jaramillobotero@nasa.gov o messod.c.bendayan@nasa.gov.
Learn more about the mission at:
https://www.nasa.gov/mission/nasas-spacex-crs-33/
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Joshua Finch
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov
Steven Siceloff
Kennedy Space Center, Fla.
321-876-2468
steven.p.siceloff@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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Last Updated Aug 18, 2025 LocationNASA Headquarters Related Terms
SpaceX Commercial Resupply Commercial Resupply International Space Station (ISS) Johnson Space Center Kennedy Space Center NASA Headquarters View the full article
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By NASA
Tess Caswell supports the International Space Station from NASA’s Johnson Space Center in Houston as a capsule communicator, or capcom, as well as through the Extravehicular Activity Office. She is currently on rotation as the Artemis lead capcom, helping to develop training and processes for the Artemis campaign by leveraging her experience supporting the space station.
She helps ensure that astronauts aboard the spacecraft receive the right information at the right time. This role involves a range of activities, from learning the language of the spacecraft and its onboard operations to participating in simulations to relay critical information to the crew, especially during dynamic operations or when things go wrong.
Read on to learn more about Tess!
Tess Caswell serves as lead capsule communicator, or capcom, in the Mission Control Center in Houston for the arrival of NASA’s SpaceX Crew-10 to the International Space Station. NASA/Robert Markowitz Where are you from?
Soldotna, Alaska.
How would you describe your job to family or friends that may not be familiar with NASA?
Capcoms are the people who speak to the astronauts on behalf of Mission Control, and I am the lead for the team of capcoms who will support missions to the Moon as part of NASA’s Artemis campaign.
What advice would you give to young individuals aspiring to work in the space industry or at NASA?
Remember that space travel is more than just engineers and scientists. It takes all kinds of people to support astronauts in space, including medicine, food science, communications, photography – you name it!
Tess Caswell
Extravehicular Activity Flight Controller and Lead Capsule Communicator
I like to encourage young people to think about what part of space travel inspires them. We live in an era where there are many companies leveraging space for different purposes, including tourism, settlement, profit, and exploration. It’s important to think about what aspect of space travel interests you – or use things like internships to figure it out!
If you’re excited about space but don’t want to be an engineer, there are still jobs for you.
How long have you been working for NASA?
Eight years, plus a few internships.
What was your path to NASA?
Internships and student projects were my path to NASA. As an undergraduate, I worked in a student rocket lab, which gave me firsthand experience building and testing hardware. During the summers, I participated in internships to explore various careers and NASA centers. My final internship led directly to my first job after college as an Environmental and Thermal Operating Systems (ETHOS) flight controller in mission control for the space station.
I left NASA for a while to pursue an advanced degree in planetary geology and spent two years working at Blue Origin as the lead flight controller for the New Shepard capsule. Ultimately, though, I am motivated by exploration and chose to return to NASA where that is our focus. I landed in the Extravehicular Activity Office (EVA) within the Flight Operations Directorate after returning from Blue Origin.
Tess Caswell suits up in the Extravehicular Mobility Unit at the Neutral Buoyancy Laboratory at NASA’s Sonny Carter Training Facility in Houston during training to become an EVA instructor. NASA/Richie Hindman Is there a space figure you’ve looked up to or someone that inspires you?
It’s hard to name a specific figure who inspires me. Instead, it’s the caliber of people overall who work in flight operations at Johnson Space Center. Not just the astronauts, but the folks in mission control, in the backrooms supporting the control center, and on the training teams for astronauts and flight controllers. Every single person demonstrates excellence every day. It inspires me to bring my best self to the table in each and every project.
What is your favorite NASA memory or the most meaningful project you’ve worked on during your time with NASA?
That is a hard one!
My current favorite is probably the day I certified as a capcom for the space station. The first time talking to the crew is both nerve-wracking and exciting. You know the entire space station community stops and listens when you are speaking, but it’s incredibly cool to be privileged with speaking to the crew. So, your first few days are a little scary, but awesome. After I’d been declared certified, the crew called down on Space –to Ground to congratulate me. It was a very special moment. I saved a recording of it!
Tess Caswell learns to fly the International Space Station Remote Manipulator System, or Canadarm2, in Canada as part of capcom training. Tess Caswell What do you love sharing about station?
The international collaboration required to design, build, and operate the International Space Station is a constant source of inspiration for me.
Tess Caswell
Extravehicular Activity Flight Controller and Lead Capsule Communicator
When I give folks tours of mission control, I like to point out the photo of the U.S.-built Unity node and the Russian-built Zarya module mated in the shuttle cargo bay. The idea that those two modules were designed and built in different countries, launched in two different vehicles, and connected for the first time in low Earth orbit reminds me of what we can all do when we work together across geopolitical boundaries. The space station brings people together in a common mission that benefits all of us.
If you could have dinner with any astronaut, past or present, who would it be?
Sally Ride, definitely.
Do you have a favorite space-related memory or moment that stands out to you?
If I had to choose one, I’d say it was the day a person from NASA visited my elementary school in 1995. I remember being completely captivated by his presentation and dying to ask questions when he came by my classroom later. It’s a favorite memory because it poured fuel on the spark of my early childhood interest in space exploration. It wasn’t the thing that initially piqued my interest, but that visit made the dream feel attainable and set me on the course that has me at NASA today.
What are some of the key projects you have worked on during your time at NASA? What have been your favorite?
I’ve worked in mission control for the space station as an ETHOS flight controller and, later, as a capcom. I’ve also certified as an EVA task backroom controller and scripted three spacewalks that were performed on the space station. While working in EVA, I also helped design the products and processes that will be used to design moonwalks for Artemis astronauts and how flight control operations will work during dynamic, science-driven spacewalks.
Developing an EVA is a huge integration effort, and you get to work with a broad range of perspectives to build a solid plan. Then, the spacewalks themselves were both challenging and rewarding. They didn’t go exactly to plan, but we kept the crew safe and accomplished our primary objectives!
I’m fortunate to have had so many cool experiences while working at NASA, and I know there will be many more.
Tess Caswell, right, and geoscientist Dr. Kelsey Young, left, conduct night operations in NASA’s Johnson Space Center rock yard, testing EVA techniques to prepare for future lunar missions.NASA/Norah Moran What are your hobbies/things you enjoy doing outside of work?
I like to stay active, including trail running, taekwondo, backpacking, and cross-country skiing (which is a bit hard to train for in Houston). I spend as much time as I can flying my Piper J-3 Cub, trying to make myself a better pilot each time I fly. Finally, I read and write fiction to let my imagination wander.
Day launch or night launch?
Night launch!
Favorite space movie?
Apollo 13, hands down!
NASA Worm or Meatball logo?
Worm – elegant and cool!
Every day, we are conducting exciting research aboard our orbiting laboratory that will help us explore farther 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 is 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 X, and on the space station accounts on Facebook and Instagram.
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By Space Force
Space Systems Command activated a new Systems Delta to support the BMC3I Program Executive Office portfolio. This activation synchronizes acquisition efforts for critical space system capabilities and works together with Mission Deltas to improve mission readiness.
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By Space Force
The U.S. Space Force published its new Space Force Instruction (SPFI) 36-2903, Dress and Appearance, a comprehensive, service-specific policy consolidating all uniform and grooming guidance into a single document.
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By NASA
Northrop Grumman’s Cygnus spacecraft, atop a SpaceX Falcon 9 rocket, soars from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida on Aug. 4, 2024, for Northrop Grumman’s 21st Commercial Resupply Services mission for NASA.Credit: SpaceX Media accreditation is open for the next launch to deliver NASA science investigations, supplies, and equipment to the International Space Station. A Northrop Grumman Cygnus spacecraft will launch to the orbital laboratory on a SpaceX Falcon 9 rocket for NASA.
The mission is known as NASA’s Northrop Grumman Commercial Resupply Services 23, or Northrop Grumman CRS-23. Liftoff is targeted for mid-September from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida.
Following launch, astronauts aboard the space station will use the Canadarm2 to grapple Cygnus, and the spacecraft will be installed robotically to the Unity module’s Earth-facing port for cargo unloading. The spacecraft will remain at the space station for more than two months.
Credentialing to cover prelaunch and launch activities is open to U.S. media. The application deadline for U.S. citizens is 11:59 p.m. EDT, Wednesday, Aug. 27. All accreditation requests must be submitted online at:
https://media.ksc.nasa.gov
Credentialed media will receive a confirmation email upon approval. NASA’s media accreditation policy is available online. For questions about accreditation, or to request special logistical support, email: ksc-media-accreditat@mail.nasa.gov. For other questions, please contact NASA’s Kennedy Space Center newsroom at: 321-867-2468.
Para obtener información sobre cobertura en español en el Centro Espacial Kennedy o si desea solicitor entrevistas en español, comuníquese con Antonia Jaramillo o Messod Bendayan a: antonia.jaramillobotero@nasa.gov o messod.c.bendayan@nasa.gov.
This is the 23rd spacecraft built to deliver goods to the International Space Station. In March, NASA and Northrop Grumman moved up the company’s Commercial Resupply Services-23 mission to September following damage to the Cygnus Pressurized Cargo Module during shipping for the company’s Commercial Resupply Services-22 flight.
Each resupply mission to the station delivers scientific investigations in the areas of biology and biotechnology, Earth and space science, physical sciences, and technology development and demonstrations. Cargo resupply from U.S. companies ensures a national capability to deliver scientific research to the space station, increasing NASA’s ability to conduct new investigations aboard humanity’s laboratory in space.
In addition to food, supplies, and equipment for the crew, Cygnus will deliver research, including materials to produce semiconductor crystals in space and equipment to develop improvements for cryogenic fuel tanks. Cygnus also will deliver a specialized UV light system to prevent biofilm growth and supplies to produce pharmaceutical crystals that could treat cancer and other diseases.
The International Space Station is a convergence of science, technology, and human innovation that enables research not possible on Earth. For almost 25 years, humans have continuously lived and worked aboard the International Space Station, advancing scientific knowledge and demonstrating new technologies that enable us to prepare for human exploration of the Moon and Mars.
Learn more about NASA’s commercial resupply missions at:
https://www.nasa.gov/station
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Josh Finch
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov
Steven Siceloff
Kennedy Space Center, Fla.
321-876-2468
steven.p.siceloff@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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Last Updated Aug 18, 2025 EditorJessica TaveauLocationNASA Headquarters Related Terms
Commercial Resupply International Space Station (ISS) ISS Research Northrop Grumman Commercial Resupply View the full article
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