Scientists await a big splash in the Pacific Ocean as one of the most research-packed Dragon spacecraft to date returns, completing the 34th SpaceX commercial resupply mission to the International Space Station for NASA. Biological and materials samples, along with tested hardware, are heading back to research teams on Earth for further analysis, advancing NASA’s work to prepare humans for exploration beyond low Earth orbit and to deliver benefits back home.
Some samples returning are for NASA’s Hematopoietic Stem Cell Expansion in Space: Pathfinder Investigation (InSPA-StemCellEX-H2), which seeks to use the microgravity environment to scale up the production of stems cells. On Earth, lab-produced blood stem cells lose their ability to form different cell types, like red and white blood cells that are critical to treating patients with certain blood diseases and cancers. In microgravity, researchers believe this ability will be better preserved while also growing these stem cells in greater numbers. The returning samples will undergo further analysis to determine if space-based efforts produce larger quantities of enhanced stem cells suitable for clinical use.
The team behind NASA’s Streptococcus pneumoniae (Spn) Infection of Cardiac Tissue (MVP Cell-09) experiment is awaiting the return of stem cell-derived heart tissues that were intentionally infected with a pneumonia-causing bacterium as part of ongoing microgravity research. Pneumonia increases the risk of heart disease, which is not fully understood. Because bacteria tend to become more active and virulent in microgravity, this experiment could amplify their effects, making it possible to detect cellular responses that cannot be observed on Earth.
NASA’s Megakaryocyte Flying-One (MeF1) samples are returning to Earth to help understand how large cells found in bone marrow, known as megakaryocytes, and the platelets they produce adapt to spaceflight. Megakaryocytes and platelets play important roles in the formation of blood clots and immune responses. The returning samples, including those taken from astronauts, could show us how the human immune system reacts aboard the space station and help prepare for future exploration missions.
Many spacecraft use cryogenic fuels for propulsion, but temperature swings in space can cause these extremely cold fuels to slowly evaporate and escape their tank, reducing fuel efficiency and complicating mission planning. NASA’s Zero Boil-Off Tank Noncondensables (ZBOT-NC) investigation aboard station studies how gases that do not condense into liquids at cold temperatures affect pressure control and fluid behaviors in propellant tanks. Hardware returning aboard Dragon, including drives containing fluid-physics data, could help validate models and contribute to the design of more efficient cryogenic fuel storage systems for long-duration missions.
Semiconductor research samples as part of NASA’s In-Space Production of Semimetal-Semiconductor Composite Bulk Crystals in Microgravity (SUBSA-InSPA-SSCug) investigation are returning to Earth for further analysis. This study manufactured semimetal-semiconductor composite alloy crystals in space, which have applications in many electronics, including sensors and lasers. Researchers believe microgravity could enable the production of significantly greater and higher-quality crystals, supporting the development of next-generation semiconductor technologies.
NASA’s DNA Nano Therapeutics-3 research team will receive tiny, space-assembled DNA-inspired materials that are combined with medicines to create active cancer treatments. Producing these treatments in microgravity can improve how well they perform in the body. This research could improve patient outcomes by helping therapies reach tumors more effectively, stay in the body longer, and improve medicine release.
Tissue models of the brain, heart, liver, and kidney that were tested with novel RNA-based medicines as part of NASA’s InSPA-Sachi Nanoligomer investigation are also returning. Microgravity can accelerate aging and disease processes, giving researchers a unique environment to better observe how well these new drugs work on different organs ahead of clinical trials.
Samples from ESA’s (European Space Agency) Green Bone investigation are returning to Earth to help understand how bone cells grow and develop on a new scaffold made from wood. Designed to mimic real bone, this scaffold was tested in microgravity to understand its ability to heal defects and fractures. Because living in microgravity simulates conditions like osteoporosis, a skeletal disorder which affects millions of people worldwide, the results could help treat patients with these fragile bone conditions.
NASA’s 3D Bone Marrow Analog research team will analyze the returning 3D-printed tissues that mimic parts of the bone marrow. Spaceflight can cause aging-like changes, including bone and muscle loss. To investigate potential countermeasures, these tissue models were exposed to small vibrations aboard the space station to simulate exercise. After the samples return to Earth, researchers will measure bone-like mineral formations and observe cellular and genetic changes. Findings from this investigation could help develop new strategies to maintain astronaut bone and muscle health during future long-duration missions.
In the United States, more than 900,000 knee cartilage injuries occur annually, with many requiring surgery. NASA’s InSPA-Auxilium Bioprinter-Cell Printing is investigating how to treat these injuries and is returning 3D-printed cartilage tissue samples from space station. This investigation uses the orbiting laboratory’s unique microgravity environment to bioprint cartilage tissues with more evenly distributed cells compared to those printed on Earth. The results could help produce higher-quality cartilage prints to treat joint injuries.
The post NASA’s SpaceX CRS-34 Dragon Returns Packed with Space Station Science appeared first on NASA Science.
Scientists await a big splash in the Pacific Ocean as one of the most research-packed Dragon spacecraft to date returns, completing the 34th SpaceX commercial resupply mission to the International Space Station for NASA. Biological and materials samples, along with tested hardware, are heading back to research teams on Earth for further analysis, advancing NASA’s work to prepare humans for exploration beyond low Earth orbit and to deliver benefits back home.
Some samples returning are for NASA’s Hematopoietic Stem Cell Expansion in Space: Pathfinder Investigation (InSPA-StemCellEX-H2), which seeks to use the microgravity environment to scale up the production of stems cells. On Earth, lab-produced blood stem cells lose their ability to form different cell types, like red and white blood cells that are critical to treating patients with certain blood diseases and cancers. In microgravity, researchers believe this ability will be better preserved while also growing these stem cells in greater numbers. The returning samples will undergo further analysis to determine if space-based efforts produce larger quantities of enhanced stem cells suitable for clinical use.
The team behind NASA’s Streptococcus pneumoniae (Spn) Infection of Cardiac Tissue (MVP Cell-09) experiment is awaiting the return of stem cell-derived heart tissues that were intentionally infected with a pneumonia-causing bacterium as part of ongoing microgravity research. Pneumonia increases the risk of heart disease, which is not fully understood. Because bacteria tend to become more active and virulent in microgravity, this experiment could amplify their effects, making it possible to detect cellular responses that cannot be observed on Earth.
NASA’s Megakaryocyte Flying-One (MeF1) samples are returning to Earth to help understand how large cells found in bone marrow, known as megakaryocytes, and the platelets they produce adapt to spaceflight. Megakaryocytes and platelets play important roles in the formation of blood clots and immune responses. The returning samples, including those taken from astronauts, could show us how the human immune system reacts aboard the space station and help prepare for future exploration missions.
Many spacecraft use cryogenic fuels for propulsion, but temperature swings in space can cause these extremely cold fuels to slowly evaporate and escape their tank, reducing fuel efficiency and complicating mission planning. NASA’s Zero Boil-Off Tank Noncondensables (ZBOT-NC) investigation aboard station studies how gases that do not condense into liquids at cold temperatures affect pressure control and fluid behaviors in propellant tanks. Hardware returning aboard Dragon, including drives containing fluid-physics data, could help validate models and contribute to the design of more efficient cryogenic fuel storage systems for long-duration missions.
Semiconductor research samples as part of NASA’s In-Space Production of Semimetal-Semiconductor Composite Bulk Crystals in Microgravity (SUBSA-InSPA-SSCug) investigation are returning to Earth for further analysis. This study manufactured semimetal-semiconductor composite alloy crystals in space, which have applications in many electronics, including sensors and lasers. Researchers believe microgravity could enable the production of significantly greater and higher-quality crystals, supporting the development of next-generation semiconductor technologies.
NASA’s DNA Nano Therapeutics-3 research team will receive tiny, space-assembled DNA-inspired materials that are combined with medicines to create active cancer treatments. Producing these treatments in microgravity can improve how well they perform in the body. This research could improve patient outcomes by helping therapies reach tumors more effectively, stay in the body longer, and improve medicine release.
Tissue models of the brain, heart, liver, and kidney that were tested with novel RNA-based medicines as part of NASA’s InSPA-Sachi Nanoligomer investigation are also returning. Microgravity can accelerate aging and disease processes, giving researchers a unique environment to better observe how well these new drugs work on different organs ahead of clinical trials.
Samples from ESA’s (European Space Agency) Green Bone investigation are returning to Earth to help understand how bone cells grow and develop on a new scaffold made from wood. Designed to mimic real bone, this scaffold was tested in microgravity to understand its ability to heal defects and fractures. Because living in microgravity simulates conditions like osteoporosis, a skeletal disorder which affects millions of people worldwide, the results could help treat patients with these fragile bone conditions.
NASA’s 3D Bone Marrow Analog research team will analyze the returning 3D-printed tissues that mimic parts of the bone marrow. Spaceflight can cause aging-like changes, including bone and muscle loss. To investigate potential countermeasures, these tissue models were exposed to small vibrations aboard the space station to simulate exercise. After the samples return to Earth, researchers will measure bone-like mineral formations and observe cellular and genetic changes. Findings from this investigation could help develop new strategies to maintain astronaut bone and muscle health during future long-duration missions.
In the United States, more than 900,000 knee cartilage injuries occur annually, with many requiring surgery. NASA’s InSPA-Auxilium Bioprinter-Cell Printing is investigating how to treat these injuries and is returning 3D-printed cartilage tissue samples from space station. This investigation uses the orbiting laboratory’s unique microgravity environment to bioprint cartilage tissues with more evenly distributed cells compared to those printed on Earth. The results could help produce higher-quality cartilage prints to treat joint injuries.
The Expedition 74 crew members packed a SpaceX Dragon cargo spacecraft on Monday with sensitive science experiments and lab hardware for return to Earth. The orbital residents also configured spacewalking tools and conducted cardiac research to kick off the week aboard the International Space Station.
A SpaceX Dragon cargo spacecraft is scheduled to undock from the Harmony module’s forward port at 12:05 p.m. EDT on Tuesday ending its stay at the orbital laboratory that began on April 17. NASA+ will begin its broadcast of Dragon’s undocking and departure at 11:45 a.m. Dragon’s parachute-assisted splashdown in the Pacific Ocean off the coast of southern California the following day will not be televised.
The astronauts are partnering together transferring portable science freezers loaded with critical research samples and packing lab equipment into Dragon following a month of intense research into a variety of space-designed therapies to protect human health. The freezers house the results of investigations into stem cell manufacturing, cartilage tissue printing, and more to treat a range of conditions from blood diseases, cancers, and cartilage injuries. Doctors on the ground will analyze the preserved samples to gain advanced health insights unobtainable in Earth’s gravity environment.
NASA flight engineers Chris Williams and Jack Hathaway started the cargo work early Monday packing and securing station hardware inside Dragon for the ride back to Earth. Next, flight engineer Sophie Adenot of ESA (European Space Agency) installed the sample-packed freezers in Dragon where they will stay powered on preserving the biomedical specimens for retrieval on the ground. Finally, NASA flight engineer Jessica Meir capped off Monday’s shift with more scientific transfers then cleaned and inspected hatch seals on Harmony’s port where Dragon is docked.
Meanwhile, preparations continue for a spacewalk planned for June 30 to replace a wrist joint on the Canadarm2 robotic arm. Adenot began her shift in the Quest airlock charging lithium-ion batteries that power spacesuit gloves, helmet cameras, and pistol grip tools. Williams and Meir joined each other during a break in their Dragon packing and inspected tethers that secure astronauts to the orbiting lab during spacewalks.
Station commander Sergey Kud-Sverchkov and flight engineer Sergei Mikaev, both from Roscosmos, took turns wearing a series of arm, wrist, and finger cuffs measuring how living in space affects their blood pressure. Next, Kud-Sverchkov attached electrocardiogram sensors to his chest that will monitor his cardiac activity for 24 hours. Mikaev turned his attention to Earth observations, pointed a camera out a station window, and photographed landmarks across the Pacific Ocean including islands and volcanos.
Flight engineer Andrey Fedyaev began his shift transferring fluids and disinfecting tanks throughout the station’s Roscosmos segment. Fedyaev wrapped up his shift working on ventilation system maintenance and checking station lighting conditions and illumination levels.
Learn more about station activities by following the space station blog, @space_stationon X, as well as the ISS Facebook and ISS Instagram accounts.
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The post Crew Packs Dragon for Tuesday Departure and Preps for Spacewalk appeared first on NASA Science.
Depression and anxiety are among the most common mental health conditions in the world. They can affect how people think, feel, sleep, work, and interact with others. For many people, antidepressant medications can make a major difference, helping them regain energy, improve their mood, and return to daily activities. However, one of the biggest challenges […]
The post The Depression Drugs People Are Most Likely to Stay On, According to Research appeared first on Knowridge Science Report.
Space agriculture, stem cells, and cargo operations wrapped up the week aboard the International Space Station. The Expedition 74 crew also conducted blood tests and installed a new food processor as a U.S. cargo spacecraft nears the end of its mission.
Launching a spacecraft on Earth packed with enough food for a yearslong crew mission or sending resupply ships to replenish a crew beyond low Earth orbit is prohibitive. Therefore, growing plants aboard a spacecraft is key to sustaining crews on long-duration missions to the Moon, Mars, and beyond. As a result, NASA and its international partners have been exploring growing crops in space to enable crews to feed themselves without support from Earth. NASA flight engineer Chris Williams contributed to the ongoing space agriculture research at the end of the week and configured a microscope to observe plant cell division in microgravity. Insights may lead to improved methods of growing food in space as well as on lunar and planetary surfaces.
Low Earth orbit may also be the next frontier for biomedical manufacturing as doctors seek to overcome the limitations of gravity on the ground. NASA flight engineer Jessica Meir harvested blood stem cells inside the Kibo laboratory module’s Life Science Glovebox (LSG) that have been growing aboard the orbital outpost since the arrival of a SpaceX Dragon cargo craft on May 17. Next, she looked at the density and viability of the live cells using the KERMIT fluorescent microscope. Researchers are exploring space-designed cell therapies to treat serious medical conditions such as blood cancers and immune diseases.
Dragon is due to depart the International Space Station at 12:05 p.m. EDT on Tuesday, June 16, to return the stem cell samples, including several tons of completed science experiments and lab hardware, for analysis on Earth. Live coverage of Dragon’s undocking and departure begins at 11:45 a.m. on NASA+.
Williams and Meir also partnered with flight engineers Jack Hathaway of NASA and Sophie Adenot of ESA (European Space Agency) packing Dragon with return cargo together throughout Friday. The quartet will intensify their cargo transfers early next week when they begin loading Dragon with sensitive research samples packed inside portable science freezers for preservation, retrieval, and analysis on Earth.
Williams and Meir began their Friday shift collecting blood samples for spinning in a centrifuge then stowing in a science freezer for future analysis. Hathaway removed a research freezer from inside Kibo’s Life Science Glovebox used the day before to preserve bacteria samples for genetic and chemical analysis. Adenot also spent some time assisting Meir during the stem cell operations then tested a new food processor in the Columbus laboratory module by cooking a Mediterranean dish.
The station’s three cosmonauts, station commander Sergey Kud-Sverchkov and flight engineers Sergei Mikaev and Andrey Fedyaev enjoyed an off-duty day on Friday.
Learn more about station activities by following the space station blog, @space_stationon X, as well as the ISS Facebook and ISS Instagram accounts.
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The post Botany and Biology Research Wrap Up Week as Dragon Preps for Earth Return appeared first on NASA Science.
A German court has sparked a legal controversy by ruling that Google is responsible for defamatory comments generated by its own AI system. The search giant had argued that it couldn’t be blamed for the false results, but a Munich court has deemed that not to be the case and has ruled in favor of the two unnamed plaintiffs, both publishing companies, who the Google AI Overview inaccurately said engaged in shady business practices.
Google is required to remove the comments and ensure that they are not repeated. The case is certainly going to raise some questions globally. Will this mean that other courts are going to rule against AI vendors?
Bernhard Buchner, a partner at Lausen Rechtsanwälte, the legal firm that acted for the plaintiffs, said, “I believe it shows that online providers such as Google cannot hide behind the fact that a statement was generated by AI, but rather that they can be held liable for its output. It is an important step towards ensuring that providers of AI systems have to take responsibility for their outputs.”
So, does this mean that the decision could be replicated in the US or elsewhere? Alex Shahrestani, managing partner at Austin-based Promise Legal, said, “the short answer is ‘yes’: the Munich ruling travels, because US courts are already making the same move.”
He explained that Section 230 of the US Communications Decency Act, which has been applied to protect online service providers like social media companies from lawsuits based on their decisions to transmit or take down user-generated content, was built for computer bulletin boards, “not for a model that writes its own answers. Once the AI is the author, the company is the publisher.”
This means, he said, “businesses now need named humans at accountability nodes, verification gates before AI output ships, and audit trails that survive discovery, because ‘the model recommended it’ is a legally empty sentence.”
Does the decision mean that other AI providers could find themselves in the same position? Buchner believes it’s possible, although, he said, the situation in this case is unusual; it does not involve a classic chatbot scenario, but one where the AI-generated statements are published as an ‘AI overview’ of a search query.
“Google’s liability here is based not so much on the fact that it operates the underlying AI, but rather on the publication of its output. However, it seems entirely conceivable to me that this could also be applied generally to inaccurate or defamatory AI,” he pointed out.
Nonetheless, said Carolyn Shelby, head of SEO at Yoast, the German ruling should ensure that companies will be more circumspect in how they handle AI in the future, to protect themselves from any legal action. The first thing they should do is to separate low-risk use of AI from major decision-making.
“Using AI to summarize meeting notes, brainstorm campaign ideas, or create a first draft of something is very different from using it to make decisions about customers, employees, finance, compliance, health, legal claims, competitive positioning, or public communications,” she noted.
She pointed out that the effects of AI use could be devastating for companies. “The consequences could include customer complaints, reputational damage, regulatory attention, legal claims, correction costs, loss of trust, and internal disruption,” she said. “Even when a mistake does not become a lawsuit, the operational cost of correcting bad information can be significant.”
However, she noted, things may not change immediately. “Many companies will wait until there is a high-profile court case, regulatory action, or major corporate embarrassment before they take this seriously. That is usually how governance catches up with technology. But the better-run organizations will start treating AI governance as part of normal business risk management now.”
And, said Shahrestani, after the Google decision, everything has changed. It will become more important to ensure that employees remain part of the process.
Microbiology dominated the research schedule aboard the International Space Station on Thursday helping doctors protect health on Earth and in space. The Expedition 74 crew also tested a new spacesuit, packed a U.S. cargo spacecraft, and kept up lab maintenance throughout the orbital outpost.
Scientists are comparing bacteria samples grown onboard the orbiting lab to similar samples living in simulated microgravity chambers on Earth to learn how microbes respond to space-like conditions. ESA (European Space Agency) astronaut Sophie Adenot kicked off the Odyssey biotechnology investigation processing microbe samples inside the Kibo laboratory module’s Life Science Glovebox (LSG) to document their genetic function. Next, NASA flight engineer Chris Williams collected the microbes for preservation and cleaned the research hardware inside the LSG for continuing operations. Finally, NASA flight engineer Jessica Meir took over and completed the day’s genetic study treating the sensitive samples to observe their chemical response. She immediately stowed the microbes for preservation afterward inside the LSG’s science freezer that she had installed the day before. Insights gained from the new study may lead to new ways of protecting humans and equipment exposed to harsh conditions on and off the Earth.
After completing her microbe work, Adenot moved to the Columbus laboratory module and tried on a prototype spacesuit designed by ESA to be worn inside a spacecraft. She tested the EuroSuit for its ease of donning on and off, as well as its comfort and mobility, then documented her experience for engineers to review. Results will inform the final design of the suit to meet the ergonomic requirements of living and working in space.
Williams also continued packing cargo inside a SpaceX Dragon cargo spacecraft with assistance from NASA flight engineer Jack Hathaway. Dragon is being loaded with several thousand pounds of station gear and science experiments that will be returned to Earth for analysis by engineers and scientists. Hathaway spent the majority of his shift inside the Tranquility module swapping orbital plumbing components and transferring water between tanks for life support maintenance.
Meir began her shift servicing fluid-containing sample processing hardware that is supporting the observation of pharmaceutical crystal growth to promote the production of advanced cancer therapies in weightlessness. Next, she activated tubes filled with microbial and botanical samples for a variety of student-designed experiments inside the Harmony module.
Roscosmos cosmonaut and station commander Sergey Kud-Sverchkov inspected and cleaned ventilation equipment then repaired a thermal sensor inside the Zvezda service module. Flight engineer Sergei Mikaev disinfected surfaces inside the Zarya module and checked the functionality of video hardware. Flight engineer Andrey Mikaev spent his shift on orbital plumbing and oxygen generator maintenance in the space station’s Roscosmos segment.
Learn more about station activities by following the space station blog, @space_stationon X, as well as the ISS Facebook and ISS Instagram accounts.
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The post Microbiology DNA and Chemistry for Health Insights Tops Research Schedule appeared first on NASA Science.
A soccer ball floats in microgravity in this March 2, 2026, picture from the International Space Station. The space station crew tested soccer balls to study how internal mass affects motion and stability in microgravity. The findings have improved understanding of how embedded technologies, including match-ball sensors, can influence performance during play.
Through research aboard the International Space Station and technology developed for exploration, NASA continues to demonstrate how discoveries made for space can benefit people on Earth—including athletes and fans participating in the world’s most popular sport.
Image credit: NASA
The post Soccer Meets Space Science appeared first on NASA Science.
A soccer ball floats in microgravity in this March 2, 2026, picture from the International Space Station. The space station crew tested soccer balls to study how internal mass affects motion and stability in microgravity. The findings have improved understanding of how embedded technologies, including match-ball sensors, can influence performance during play.
Through research aboard the International Space Station and technology developed for exploration, NASA continues to demonstrate how discoveries made for space can benefit people on Earth—including athletes and fans participating in the world’s most popular sport.
Image credit: NASA
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