NASA 公布 SpaceX CRS-35 补给任务健康研究载荷：将送脑模型与作物实验上空间站
NASA’s SpaceX CRS-35 Mission to Launch Health Research
据 NASA 介绍，SpaceX 为 NASA 执行的第 35 次商业补给服务任务（CRS-35）将从佛罗里达州卡纳维拉尔角太空军基地发射，把一组健康相关实验送往国际空间站。载荷包括 NASA 生物与物理科学部门的四项研究：把实验室培育的人脑组织模型送上空间站停留数周，与地面相同样本对比以研究短期太空飞行对脑细胞的影响；测试作物病害在微重力下是否发展得更快更重，为抗病育种与未来太空农业提供依据；试用紧凑型微孔板读取器在站内直接检测抗体、抗原与蛋白质等生物标志物，以便快速评估宇航员健康；以及第四次也是最后一次把耐药细菌研究送上站，持续采样监测耐药微生物在微重力下的存活与演化。
NASA experiments focused on human and plant health and drug-resistant organisms will travel to the International Space Station aboard SpaceX’s 35th Commercial Resupply Services mission for the agency from Cape Canaveral Space Force Station in Florida, advancing research that benefits life on Earth and future exploration.
This research supports astronaut health during long-duration missions through four investigations from the agency’s Biological and Physical Sciences division, including 3D models of the human brain, a crop disease study, a faster way to assess astronaut health, and an analysis of antibiotic-resistant bacteria aboard the space station.
Tiny brain models, big questions
A new precision health investigation helps address a key question: What happens to the human brain in space?
The experiment sends small, lab-grown models of the human brain to the orbiting laboratory for five weeks. Researchers compare tissue models that traveled to space with identical ones kept on Earth to determine how a short spaceflight affects the human brain at the cellular level.
The effort could deepen our understanding of how the human brain responds to stress and help lay the groundwork for methods that counter risks to brain health that astronauts may face on future missions to the Moon and beyond.
Disease-resistant crops for space
A space crops investigation tests whether crop diseases develop faster and more severely in microgravity.
The experiment compares molecular and structural changes between Earth-grown and space station-grown plants infected with a disease-causing fungus. The findings could guide plant breeding on Earth to produce disease-resistant crops and help minimize yield losses in future space agriculture systems.
Space crops provide nutrition, increase dietary variety, and offer psychological benefits for astronauts during extended missions. They also absorb carbon dioxide, produce oxygen, and recycle water, which will become increasingly important as human missions extend farther from Earth.
Analysis helps astronauts thrive
The spacecraft also carries the first test of a compact microplate reader that arrived aboard the space station earlier this year.
The Commercially Enabled Rapid Space Science initiative experiment tests the device’s ability to detect and measure certain biomarkers such as antibodies, antigens, and proteins.
Use of the plate reader would allow scientists to analyze samples aboard the space station and obtain data quickly, rather than wait for the samples to return to Earth for analysis.
Ultimately, the research aims to support the timely detection of infections and other health issues in astronauts while expanding science capabilities in remote exploration locations where resupply will be more difficult.
Tracking antibiotic-resistant bacteria
A precision health investigation returns for its fourth and final planned stay aboard the space station to study how antibiotic-resistant bacteria survive and evolve in microgravity.
As part of the investigation, astronauts repeatedly sample surfaces throughout the space station to monitor for drug-resistant organisms.
The work could help develop ways to protect astronauts against bacterial infections during long-duration missions. On Earth, the findings could provide insight into how superbugs develop from the overuse of antibiotics.
To learn more about NASA’s biological and physical research in space, visit: https://science.nasa.gov/biological-physical/
来源：MyTesla 编辑台 · science.nasa.gov