On August 28, according to foreign media reports, SpaceX, a US space exploration technology company, is scheduled to launch a supply mission to the international space station on Saturday, local time, and will transport a number of scientific payloads to astronauts living and working in the orbital laboratory < p > < / P > < p > this mission, called crs-23, is SpaceX's 23rd mission under its commercial cargo resupply service contract with NASA. The upgraded cargo dragon flying ship will be launched by a second-hand Falcon 9 rocket, which is filled with 4800 pounds (2177 kg) of supplies, including scientific research materials and instruments. These devices will support various experiments in life sciences, pharmaceuticals and many other fields < p > Joel Montalbano, project manager of NASA International Space Station, said at the pre launch press conference: "we are really happy to cooperate with SpaceX to complete this task. We are using these resupply missions to optimize our scientific experiments on the space station and increase the number of exploration and technology development we can do to support our future missions. " < p > Saturday's flight will mark the third time that SpaceX upgraded cargo dragon spacecraft carries cargo. The spacecraft is an improved version of the manned dragon spacecraft and lacks the systems required for manned missions, such as seats, cockpit control, life support system and superdraco propeller. The latter provides a special emergency escape system and can only be used in case of problems during launch < p > through this business partnership, SpaceX and NASA have always been committed to bringing more scientific research materials and instruments to the space station. The upgraded cargo dragon spacecraft can carry more payloads, which is a great benefit for life science because it allows more refrigeration and other types of research. When the spacecraft is in orbit, it also allows the crew to store part of the payload on it < p > plant stress test < / P > < p > when astronauts start long-term missions in the future, the crew will need to grow their own food to supplement the supplies they carry with them. However, microgravity will put more pressure on plants < p > a new study named apex-08 will help to determine the effect of microgravity environment on plant stress response. As part of the experiment, the researchers will plant Arabidopsis thaliana, a water celery plant often used by scientists. The study includes genetic changes or mutations that trigger reactions in polyamines, organic compounds that regulate how plants respond to environmental stress < p > these plant seeds will be sent to the international space station in plant dishes and photographed before being sent to the vegetable growth room. Nine days later, astronauts will remove these plants, photograph their growth process, and then save them for transportation back to earth By comparing the samples on the international space station with the same control experiments on the ground, the research team will have a good understanding of how changing putrescine in seedlings affects the response of plants to micro gravity pressure, said Dr. Patrick Mason, chief researcher at the University of Wisconsin Madison. This result may have an impact on agriculture on earth, because scientists can better resist environmental pressures such as drought by transforming plants < p > astronaut vision test < / P > < p > another payload will focus on a new method of measuring changes in astronaut vision. More than two-thirds of astronauts have experienced abnormal vision changes in space, which is a problem that scientists are trying to better understand. Claudia stern, an ophthalmologist and flight surgeon at the German Aerospace Center, is developing a new device that will help better measure the changes in astronauts' vision in orbit < p > this study is not only conducive to long-term space travel, especially on aircraft with more limited space, but also beneficial to remote areas on earth where special equipment may not be available. This device uses commercially available lenses with higher cost performance < p > bone health test < / P > < p > a team of biologists led by Dr. Fabio Peluso is sending stem cells to the international space station as part of bone regeneration experiments under microgravity. The aim of this study was to determine whether a mixture of collagen and metabolites extracted from grapes can help repair bones < p > this experiment is called "the first stage of reducing arthritis dependent inflammation" (readi FP). It will mainly observe how microgravity and space radiation affect the formation of bone tissue, as well as the potential protective effects of bioactive metabolites such as biological collagen and antioxidants during aerospace < p > the research team is sending stem cells from Petri dishes to the international space station, where they will be treated with biological stimulants to form cells like osteoblasts (osteoblasts). A mixture of collagen and metabolites (such as antioxidants, polyphenols and anthocyanins) extracted from grape skin and other wine wastes will be added to study their effects on cell growth under microgravity < p > researchers believe that these compounds will contribute to bone growth and may be used to help create new drugs and therapies to treat diseases such as osteoporosis on earth < p > deploy microsatellites < / P > < p > multiple bread sized microsatellites will also take the cargo dragon spacecraft to the international space station. NASA is working with nanoracks, which will deploy these satellites and begin their missions in early October. One of them, prcunar2, was the first satellite launched by Puerto Rico. The project has been prepared for more than 13 years and will eventually go into space on Saturday < p > the small satellite is divided into nine spaces with different materials. Once deployed from the international space station, these particles will be allowed to float and combine with each other. Through photos and videos collected by satellite onboard cameras, researchers at the university will be able to examine collisions between particles in detail < p > test space robot < / P > < p > nanoracks is cooperating with Japan Gitai robotics to send a new manipulator to the international space station. The company will test the flexibility and mobility of the manipulator currently connected to the space station's bishop airlock < p > the new manipulator is a technology demonstration mission that will allow the robot to perform routine tasks that astronauts usually do on the space station. The size of the mechanical arm is similar to that of a human arm. It can do many things, such as turning a switch, turning a knob and so on < p > but this is not its full function ?
2023-03-22 10:04:42