Articles tagged with Astronauts
A Concordia-designed simulator models hemodynamics in reduced gravity environments, revealing key differences in blood flow and pressure patterns. The system successfully reproduced effective CPR on Earth and generated consistent blood flow under both normal and hypogravity conditions.
Researchers subjected fruit flies to extreme gravitational forces and found they adapted and recovered, showing resilience in movement and energy use. The study suggests the brain makes energy trade-offs based on gravity levels, with moderate increases pushing for more movement and higher energy demands.
Astronauts experience difficulty transitioning between Earth and space due to brain predictions about gravity's pull. After prolonged periods in weightlessness, they overcompensate with their hand grip when returning to Earth, but gradually adjust over time.
The University of Michigan's new solar particle forecasting technology has been integrated into NASA's Artemis II mission to provide situational awareness of impending harmful radiation released during solar flares and eruptions. The machine-learning model uses satellite images of the sun and corona to forecast solar particle storms up...
GSI/FAIR's new Galactic Cosmic Ray simulator enables researchers to better understand radiation doses and control effects in human tissue and technical components. The simulator replicates the GCR exposure in a lightly shielded habitat, providing a crucial tool for space radiation research.
Researchers have successfully grown and harvested chickpeas using simulated moon dirt, demonstrating a key step towards establishing a sustainable food source on the lunar surface. The study found that mixtures of up to 75% moon dirt were suitable for producing harvestable chickpeas, with the addition of fungi enhancing plant health.
Researchers at Ohio State University have developed a new laser 3D printing method that can create extremely durable structures using simulated lunar dirt. The study found that the material's properties depend on the surface onto which it is printed, and that environmental factors such as oxygen levels and temperature affect its stabil...
A global team of scientists, led by University of Houston microbiologist Madhan Tirumalai, has identified the critical role of biofilms in human space exploration. Biofilms could influence astronaut health, drug delivery and space agriculture, while also posing risks to astronaut health.
West Virginia University scientists create digital twin models using AI technology to monitor astronaut movements and muscle activity, predicting potential health risks. The system can detect subtle early signs of trouble, providing personalized exercise routines and helping astronauts cope with balance issues upon return to Earth.
A collaboration of bacteria, including Sporosarcina pasteurii and Chroococcidiopsis, produces natural cement-like materials that can turn Martian regolith into solid concrete. This discovery has the potential to revolutionize construction on Mars and provide benefits for habitat integrity and life-support systems.
Researchers at the University of Bristol developed a soft robotic exosuit that can reduce muscular fatigue and boost natural movements in astronauts. The technology also has potential applications for people with mobility issues on Earth.
A study of 744 bridges worldwide reveals that North American and African bridges are most at risk, with spaceborne monitoring able to detect problems before they become disasters. The proposed solution integrates satellite data into risk frameworks to significantly lower the number of high-risk bridges.
A new study published in PLOS One found that team diversity in personality traits can contribute to greater resilience under extended isolation and operational load. The researchers used agent-based modeling to simulate the impact of team composition on stress, health, performance, and cohesion over a 500-day Mars mission.
The Artemis II crew will conduct scientific investigations that will inform future deep space missions, including lunar science activities. They will analyze geologic features, collect rock samples, and gather data on the effects of the space environment on their health and performance.
The Moon-Rice project is developing a super-dwarf rice variety that can thrive in microgravity and produce high yields, addressing nutritional deficiencies in space. Researchers are also exploring ways to enrich the protein content of the crop to support astronaut health.
A team of researchers at Harvard University has demonstrated the growth of green algae inside shelters made from bioplastics in Mars-like conditions. The experiments show a closed-loop system that can sustain itself and grow over time, offering a potential solution for sustainable habitats in space.
The project aims to improve propellant and life-support compound production in lunar and Martian environments. The researchers will evaluate the performance of a patent-pending electrolyzer developed with NASA support, testing its ability to produce fuel and oxygen.
A team of Rice University students designed an adaptive exercise harness with pneumatic padding, sensors, and modular attachments to address the limitations of current space-based exercise harnesses. The innovative harness aims to slow down muscle atrophy and improve astronauts' performance in space.
Dr. Pasiakos joins Pennington Biomedical to lead research on muscle physiology, nutrition, neuroscience, and technology to optimize human performance in extreme conditions. His expertise strengthens capabilities for U.S. Military resilience, spaceflight bioenergetics, and elite athlete development.
Scientists successfully fermented miso on the International Space Station, discovering differences in bacterial communities and flavor profiles compared to Earth-made miso. The study's findings suggest that food fermentation can thrive in space, opening up new possibilities for astronaut well-being and performance.
A new study by University of Colorado Boulder researchers suggests that long-term exposure to Martian dust could lead to chronic respiratory problems, thyroid disease, and other health issues. The team identified toxic chemicals in the dust, including perchlorates, which can interfere with human thyroid function.
Crew-9 astronauts conducted research on protein crystallization studies and a new drug for Alzheimer's, dementia, and Parkinson's. They also supported student-led experiments, contributing to the next generation of explorers.
The Crew-10 mission will support cutting-edge biomedical investigations and NSF-funded physical science projects through the ISS National Lab. Astronauts will conduct experiments on the International Space Station, with findings benefiting humanity and driving commerce in low Earth orbit.
A new study published in Cell Press journal suggests that the International Space Station is overly sterile, and introducing more natural microbes could help astronauts. Researchers found that human skin was the main source of microbes on the ISS, while chemicals from cleaning products were ubiquitous.
A new study by Johns Hopkins University suggests that jumping workouts could be a preventative measure for cartilage damage in long space journeys. Mice subjected to reduced movement experienced cartilage thinning, while those performing jump training showed thicker, healthier cartilage.
Scientists have retrieved handpicked samples from Mars, including rock cores and fragmented rocks, for the first time in history. The samples will help learn more about Mars' past life, climate, and geology, as well as provide insights into Earth's surface.
Scientists found evidence of relatively recent geological activity on the moon's far side, contradicting previous assumptions about its 'geological dead' status. The team used advanced dating methods to track changes and found small ridges formed within the last 200 million years.
Establishing a permanent lunar presence will depend on the use of AI, robotics, and 3D printing to adaptively respond to challenges. The moon's natural resources, such as regolith, can also reduce the need for Earth-launched supplies.
The AstroRad vest employs high-density polymers to shield vital organs from radiation exposure, addressing cancer and radiation sickness risks. The wearable technology has undergone extensive testing through the ISS National Lab, leading to significant enhancements in its design and functionality.
Researchers at the University of Colorado Boulder have discovered that relatively warm and sunny days may help to trigger major dust storms on Mars. The team found that roughly two-thirds of these storms are preceded by a sharp rise in surface temperatures, which can lead to explosive weather patterns.
Researchers found a powerful antioxidant in Deinococcus radiodurans that combines with manganese to protect against radiation damage. The discovery could lead to synthetic antioxidants tailored for human needs, protecting astronauts and preparing for radiation emergencies.
Loral O'Hara, a NASA astronaut, visited the Naval Research Laboratory to share her 200+ day mission aboard the International Space Station. She discussed her daily routine, scientific research, and the challenges faced by the crew, highlighting the importance of space exploration for advancing human knowledge.
Scientists have discovered birth sites of gigantic elliptical galaxies, suggesting large gas flows and galaxy collisions created these ancient systems. The research, published in Nature, may finally unravel the enigma of how these giant galaxies formed.
Researchers at University of Maryland have discovered that the South Pole-Aitken basin, the moon's oldest and largest visible crater, is more circular than previously believed. The team used high-resolution data to analyze mountain formations around the basin, revealing a rounder shape indicating a more vertical impact angle.
Researchers examined 25 astronauts' cognitive performance over a 6-month ISS mission and found slower processing speed, working memory, and attention, but accuracy remained intact. No significant cognitive impairment or neurodegenerative decline was observed after the mission.
The In-Space Physical AI Workshop, held at Rice University's Ion District, brought together top scientists and experts to explore AI applications in space. Key findings included the potential of AI to streamline spacecraft navigation and crew health management.
Researchers found that confined environments influence sense of smell, while VR simulations evoke stronger emotions and aroma perceptions. The study aims to improve diets for isolated individuals by personalizing aromas.
A WVU researcher says ancient tree rings can record rare and extreme space weather events, including geomagnetic storms. The study aims to better understand how to prepare for such events and mitigate their impact on communication satellites and astronauts.
Researchers have identified specific materials that can effectively block harmful space radiation on Mars, including plastics, rubber, and synthetic fibers. The findings provide crucial insights for designing protective habitats and spacesuits, paving the way for safer long-duration Mars missions.
A team of archaeologists conducted the first-ever archeological survey in space on the International Space Station, using daily photos to document how astronauts actually used areas. The study found discrepancies between the intended and actual use of certain areas, with some being used for storage or personal items.
A study found that space-traveling muscles have impaired regeneration and gene activities associated with sarcopenia. Drug treatment partially prevented the negative effects of microgravity on muscles, suggesting a potential therapeutic approach for astronauts and older adults.
Researchers discovered that a particular sweet chemical in vanilla and almond aromas could explain the change in perceptions, along with individual sensitivity. The study also found that spatial perception played a significant role in how people smell aromas in isolated settings.
Astronauts on spacewalks will have access to clean drinking water thanks to a novel urine collection and filtration system for spacesuits. The system recycles urine with an efficiency of 87% through forward and reverse osmosis, providing a continuous supply of potable water.
Researchers analyzed blood samples from six astronauts before and after a 120-day mission on the ISS to identify changes in their bodies. The study found that extracellular DNA and RNA can be used to monitor responses to the space environment, including muscle atrophy, bone density loss, and fluid distribution fluctuations.
Researchers used a model of the heart and lung system to simulate how microgravity could affect space tourists with underlying health issues, such as heart conditions. The study found that entry into microgravity increases cardiac output in all individuals, but for heart failure patients, this increase is accompanied by a dangerous ris...
A team of researchers, including OHIO's Nate Szewczyk and students, published a comprehensive package of papers in Nature journals that transform our understanding of human space biology. The studies reveal how molecular biology and precision medicine can guide humanity into more challenging missions beyond Earth.
Researchers investigate the effects of space travel on astronauts' eye health, specifically fluid shift and its relation to Spaceflight Associated Neuro-ocular Syndrome (SANS). They examine potential countermeasures, such as lower body negative pressure, to combat microgravity-induced changes in ocular perfusion pressure.
A new biomarker database, Space Omics and Medical Atlas (SOMA), has been developed to improve astronaut health, but its findings may also be useful for people on Earth with limited mobility or bedridden conditions. The database provides insights into short and long-term health impacts of spaceflight.
Researchers found that simulated microgravity significantly disrupted rhythmicity and sleep patterns in humans, leading to reduced sleep duration and increased daytime naps. The study's findings have important implications for future spaceflight and conditions involving prolonged bed rest.
The Lunar Environment Monitoring System, developed by UMD researchers, will track seismic activity on the moon's surface during the upcoming Artemis III mission. The system's data will help prepare NASA for a long-term presence on other planetary bodies.
Research by York University finds astronauts can safely assess distances in microgravity environments, which may provide clues to understanding balance systems on Earth. The study suggests that humans are able to compensate for the lack of gravity using vision, enabling precise movements and evasive maneuvers.
Researchers monitored astronauts' muscle health using a handheld device, revealing crucial lower leg muscles are at risk of weakening. The technology could also help monitor muscle health in neuro-musculoskeletal conditions like Parkinson's Disease.
Researchers discovered that astronauts without prior headache history experienced migraine and tension-type headaches during extended space missions. The study of 24 astronauts showed a significant increase in headaches during space flight compared to pre-flight reports.
The commercial space sector has seen significant growth, with over 2,660 satellites launched into orbit in recent years. International collaborations are also expanding, enabling diverse perspectives and new ideas to emerge in science and space exploration.
Researching astronauts' microbiomes is vital for long-term space missions, as the space environment can disrupt balance and have adverse consequences. Studying microorganisms in space can also aid in developing technologies like space agriculture and antimicrobial agents.
A team of scientists found evidence that the moon's shrinkage led to surface warping in its south polar region, including areas proposed for crewed Artemis III landings. Shallow moonquakes can devastate hypothetical human settlements on the moon due to loose sediments and unstable surface slopes.
A team of researchers has designed a fresh and nutritious vegetarian salad as the ideal 'space meal' for astronauts on long-term missions. The salad combines soybeans, poppy seeds, barley, kale, peanuts, sweet potato, and sunflower seeds to meet the nutritional needs of male astronauts while minimizing farming inputs.
The ILSI 2024 Annual Meeting will feature scientific presentations, professional development, and networking opportunities focused on innovations for safe, nutritious, and sustainable food manufacturing systems. Press registration is now available for media outlets covering the event.
Research published in The FASEB Journal suggests that spaceflight can negatively affect vascular tissues, increasing the risk of erectile dysfunction. Treatment with antioxidants may help counter some effects. Functional improvements after targeted interventions suggest that erectile dysfunction may be treatable.
Scientists have developed wearable devices that vibrate to provide orientation cues, boosting the efficacy of astronaut training and making spaceflight safer. The study found that wearing these devices improved performance and reduced crashes in simulated spaceflight conditions.