Live on NASA+: Soyuz Crew Undocking from Station Soon

Live on NASA+: Soyuz Crew Undocking from Station Soon

The Soyuz MS-27 crew spacecraft is pictured docked to the Prichal module just hours before undocking from the International Space Station and returning three crew members to Earth.
The Soyuz MS-27 crew spacecraft is pictured docked to the Prichal module just hours before undocking from the International Space Station and returning three crew members to Earth.
NASA

NASA’s live coverage of undocking is now underway on NASA+Amazon Prime, and YouTube. Learn how to stream NASA content through a variety of platforms, including social media.

At 5:30 p.m. EST, hatches closed between the Soyuz MS-27 spacecraft and the International Space Station in preparation for undocking and the return to Earth of NASA astronaut Jonny Kim and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky.

The spacecraft will undock from the orbiting laboratory’s Prichal module at approximately 8:41 p.m. It will make a parachute-assisted landing at 12:03 a.m. on Tuesday, Dec. 9 (10:03 a.m. local time in Kazakhstan), on the steppe of Kazakhstan, southeast of the city of Dzhezkazgan.

Watch NASA’s live coverage of the deorbit burn, entry, and landing, beginning at 10:30 p.m. on NASA+Amazon Prime, and YouTube.

Learn more about station activities by following the space station blog, @space_station on X, as well as the ISS Facebook and ISS Instagram accounts.

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Mark A. Garcia

Hatches Closed, Crew Inside Soyuz Ready to Depart

Hatches Closed, Crew Inside Soyuz Ready to Depart

Soyuz MS-27 crew members (frm left) NASA astronaut Jonny Kim and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky pose for a portrait at the Gagarin Cosmonaut Training Center in Russia.
Soyuz MS-27 crew members (frm left) NASA astronaut Jonny Kim and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky pose for a portrait at the Gagarin Cosmonaut Training Center in Russia.
GCTC

At 5:30 p.m. EST, the hatch closed between the Soyuz MS-27 spacecraft and the International Space Station in preparation for undocking and return to Earth.

Watch NASA’s live undocking coverage beginning at 8:15 p.m. on NASA+Amazon Prime, and YouTube. Learn how to stream NASA content through a variety of platforms, including social media.

NASA astronaut Jonny Kim, accompanied by Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky, will undock from the station’s Prichal module at approximately 8:41 p.m., headed for a parachute-assisted landing at 12:03 a.m. on Tuesday, Dec. 9 (10:03 a.m. local time in Kazakhstan), on the steppe of Kazakhstan, southeast of the city of Dzhezkazgan.

Learn more about station activities by following the space station blog, @space_station on X, as well as the ISS Facebook and ISS Instagram accounts.

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Mark A. Garcia

Live on NASA+: Three Crewmates Say Farewell, Set to Depart Station

Live on NASA+: Three Crewmates Say Farewell, Set to Depart Station

From left, NASA astronaut Jonny Kim and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky will soon depart the International Space Station inside the Soyuz MS-27 crew spacecraft for a landing in Kazakhstan.
From left, NASA astronaut Jonny Kim and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky will soon depart the International Space Station inside the Soyuz MS-27 crew spacecraft for a landing in Kazakhstan.
NASA

NASA’s live departure coverage is underway on NASA+Amazon Prime, and the agency’s YouTube channel. Learn how to stream NASA content through a variety of online platforms, including social media.

NASA astronaut Jonny Kim and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky will close the hatch between the Soyuz MS-27 spacecraft and the International Space Station at 5:10 p.m. EST.

The spacecraft will undock from the station’s Prichal module at approximately 8:41 p.m., headed for a parachute-assisted landing at 12:04 a.m. on Tuesday, Dec. 9 (10:04 a.m. local time in Kazakhstan), on the steppe of Kazakhstan, southeast of the city of Dzhezkazgan.

Watch NASA’s live undocking coverage at 8:15 p.m. on NASA+Amazon Prime, and YouTube.

Kim and his crewmates are completing a 245-day stay aboard the station. At the conclusion of their mission, they will have orbited Earth 3,920 times and traveled nearly 104 million miles. The Soyuz MS-27 spacecraft launched and docked with the station on April 8.

This was the first flight for Kim and Zubritsky to the orbiting laboratory, while Ryzhikov is ending his third trip to space. Ryzhikov will have logged a total of 603 days in space, ranking him 13th all time.

Learn more about station activities by following the space station blog, @space_station on X, as well as the ISS Facebook and ISS Instagram accounts.

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Mark A. Garcia

XRISM Finds Chlorine, Potassium in Cas A

XRISM Finds Chlorine, Potassium in Cas A

This image of Cassiopeia A resembles a disk of electric light with red clouds, glowing white streaks, red and orange flames, and an area near the center of the remnant resembling a somewhat circular region of green lightning. X-rays from Chandra are blue and reveal hot gas, mostly from supernova debris from the destroyed star, and include elements like silicon and iron. X-rays are also present as thin arcs in the outer regions of the remnant. Infrared data from Webb is red, green, and blue. Webb highlights infrared emission from dust that is warmed up because it is embedded in the hot gas seen by Chandra, and from much cooler supernova debris. Hubble data shows a multitude of stars that permeate the field of view.
This composite image of the Cassiopeia A (or Cas A) supernova remnant, released Jan. 8, 2024, contains X-rays from Chandra (blue), infrared data from Webb (red, green, blue), and optical data from Hubble (red and white). A study by the XRISM (X-ray Imaging and Spectroscopy Mission) spacecraft has made the first-ever X-ray detections of chlorine and potassium in the wreckage.
X-ray: NASA/CXC/SAO; Optical: NASA/ESA/STScI; IR: NASA/ESA/CSA/STScI/Milisavljevic et al., NASA/JPL/CalTech; Image Processing: NASA/CXC/SAO/J. Schmidt and K. Arcand

The Cassiopeia A supernova remnant glows in X-ray, visible, and infrared light in this Jan. 8, 2024, image that combines data from NASA’s Chandra X-ray Observatory and Hubble, Webb, and Spitzer space telescopes. A study by the XRISM (X-ray Imaging and Spectroscopy Mission) spacecraft has made the first-ever X-ray detections of chlorine and potassium from the wreckage; a paper about the result was published Dec. 4, 2025, in Nature Astronomy.

Read more about this discovery.

Image credit: X-ray: NASA/CXC/SAO; Optical: NASA/ESA/STScI; IR: NASA/ESA/CSA/STScI/Milisavljevic et al., NASA/JPL/CalTech; Image Processing: NASA/CXC/SAO/J. Schmidt and K. Arcand

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Jeanette Kazmierczak

Artemis II Vehicle Manager Branelle Rodriguez Gets Orion Ready for “Go”

Artemis II Vehicle Manager Branelle Rodriguez Gets Orion Ready for “Go”

By the time the Artemis II Orion spacecraft launches to the Moon next year, its many components will already have traveled thousands of miles and moved across multiple facilities before coming together at NASA’s Kennedy Space Center. Branelle Rodriguez, Artemis II vehicle manager for the Orion Program, has overseen many parts of that journey. Her job is to ensure the spacecraft is ready for its historic mission – carrying humans to the Moon for the first time in over 50 years.

A woman crouches inside the mockup of a spacecraft that is equipped with seats for crewmembers.
Branelle Rodriguez crouches inside an Orion spacecraft training unit aboard the USS San Diego in March 2024. The training unit was used during a full recovery simulation with the Artemis II crew.
Image courtesy of Branelle Rodriguez

Based at NASA’s Johnson Space Center in Houston, Rodriguez has been involved in every stage of the spacecraft’s lifecycle – from development and production through testing and final launch readiness. Her program-level leadership focuses on ensuring the spacecraft’s hardware and subsystems are integrated and flight-ready. Most recently, she collaborated closely with Exploration Ground Systems at Kennedy to oversee the spacecraft’s move to the Vehicle Assembly Building, where it was mated with NASA’s SLS (Space Launch System) rocket. “We are getting our teams trained and ready so that we are GO for the Artemis II mission,” she said.

Her 21-year NASA career spans numerous roles at Johnson. She started in the center’s Engineering Directorate, developing and building life support and habitation hardware for the Space Shuttle Program and the International Space Station Program. She went on to lead teams of engineers and flight controllers tasked with real-time resolution of anomalies aboard the International Space Station before transitioning to the Orion Program in 2022.

“Looking back, every role I’ve held, every team I’ve been a part of, and every milestone we’ve achieved together has been truly remarkable,” she said. “I’m incredibly proud to have played a part in it all.”

Rodriguez has been fascinated by space since she was a little girl. “Growing up in northern Minnesota, I was lucky to experience the beauty of clear, starlit skies on a regular basis,” she recalled. When Rodriguez was a teenager, her family encouraged her to attend Space Academy in Huntsville, Alabama, where she participated in mock astronaut training, flight controller simulations, and hands-on engineering projects. “It was a pivotal experience that only deepened my passion for space exploration.”

A woman stands in front of an Orion spacecraft that is elevated on a staging platform.
Branelle Rodriguez stands in front of the Artemis II Orion spacecraft as it completes processing in the Multi-Payload Processing Facility at NASA’s Kennedy Space Center in Florida.
Image courtesy of Branelle Rodriguez

Rodriguez applied to NASA’s internship program while studying mechanical engineering at the University of North Dakota. She was not accepted, but she did not give up. She spent a semester interning at Dow Chemical to gain more experience while continuing to apply for internships across multiple NASA centers. “On my eighth attempt, I was accepted at Johnson,” she said. Three internships and one graduation later, Rodriguez landed a full-time position in the Engineering Directorate’s Crew and Thermal Systems Division. “It’s been an incredible journey—and a dream realized,” she said.

As a student athlete, Rodriguez knew the importance of teamwork from a young age, but said its value really became clear after joining NASA. “Some goals take time. There will be setbacks and struggles, but when you stick together, you build the kind of trust and relationships that are the foundation for long-term success,” she said. “That’s exactly what NASA represents. We take on some of the most complex and ambitious challenges imaginable—and we do it as a team.”

She added, “Especially now, it’s more important than ever to remember what we’re capable of when we work together, and to celebrate the wins—big or small—because each one brings us closer to the extraordinary.”

Rodriguez also appreciates having a team outside of the office. One of the greatest challenges she has faced is balancing the demands of a fulfilling, high-impact career with the needs of her family. “Like many parents, there are days when everything feels in sync, and days when I know I’ve fallen short,” she said, acknowledging that she must continually adapt to shifting needs and prioritize tasks to remain focused on what matters most at any given moment. “I’m beyond grateful for my family,” she said. “They are my foundation, and they truly understand and support my passion for the work I do. Without their love, and the broader village that helps make it all possible, I wouldn’t be where I am today.”

A family of four - mom, dad, and two young children - stand in front of a large screen showing video from inside the Artemis I spacecraft.
Branelle Rodriguez, her husband Scott, and her children Samantha and Brooks in the Mission Control Center at Johnson Space Center during the Artemis I mission in 2022. The family had an opportunity to ask the Artemis I Orion spacecraft questions via the Callisto technology demonstration carried aboard the 25-day mission.
Image courtesy of Branelle Rodriguez

To her children and future generations, Rodriguez hopes to pass on a desire to keep exploring. “As humans, we are naturally driven to grow, learn, and push beyond our limits,” she said. “Space exploration is still in its early stages when viewed through the lens of history, and the achievements of the next generation will be truly extraordinary. I want them to carry forward the curiosity, courage, and determination needed to reach new frontiers and unlock the unknown.”

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Linda E. Grimm