Cape Canaveral, Fla. – Next SpaceX resume International Space Station, Scheduled for Sunday (6 December), will host science gear for astronauts living and working in the orbiting laboratory.
Marks 21st mission for robot flight, named CRS-21 SpaceX Re-services contract with NASA under its commercial cargo. From NASA’s Kennedy Space Center in Florida is scheduled to launch on Sunday at 11:17 am (1617 GMT), and you can watch the action live Here at Space.com, Courtesy of NASA. You can also see directly NASA T.V. or SpaceX.
SpaceX initially aimed to launch a CRS-21 cargo mission to NASA on Saturday (December 5), but foul weather delayed it. “Today’s attempt is to target CRS-21’s EST on December 6 at 11:17 am, due to inclement weather in the recovery area,” SpaceX wrote in an update on Saturday morning. SpaceX plans to recover the Falcon 9 booster of the mission for later reuse.
Advanced Dragon Cargo Capsule that will launch an experienced SpaceX Falcon 9 rocket Filled with 6,400 pounds. (2,903 kg) Supply and science check. The research gear will support various experiments in life sciences, regenerative medicine and many other fields.
related: How SpaceX’s Dragon Space Capsule works (infographic)
Saturday’s flight will take SpaceX’s upgraded Dragon spacecraft for the first time. (So far, the upgraded Dragon version has only carried astronauts.) The vehicle has a modified version Dragon sent to spacecraft Which lacks the systems required for manned missions, such as seats, cockpit controls and a life-support system, as well as SuperDrco thrusters that provide a special emergency escape system that is used only when there is a problem during launch is.
This new dragon allows more science to ride the sky. Costello pointed out that the Dragon’s interior can now support more powered payloads, which is of great benefit to life sciences as it allows for more cold storage and other types of investigation. It also allows some of the crew’s payloads to be stored onboard Dragon while the craft is in orbit.
Many payloads on the Dragon have a unique piece of hardware called a tissue chip. Human cells and tissue grow on chip scaffolds, creating a 3D structure in microgravity that researchers can see to learn more about how basic processes, including aging and bone and muscle loss, work in space .
One such investigation, conducted by the University of Florida, will study how Muscle atrophy in space. Sixteen samples of skeletal muscle will be sent to the space station, where bundles of muscle tissue will be observed in microgravity. Half of the muscle samples were donated by young, active individuals while the other half were from older, more sedentary volunteers.
Half the samples in each group will be subjected to electrical stimuli to see how muscles shrink in the absence of gravity. Researchers will use this experiment as a starting point for future research that will eventually test treatments to see if muscle erosion can be prevented.
Your brain on microgravity
Another payload will appear The brain is organized Created using stem cell technology. This investigation seeks to understand how microgravity affects the survival and function of brain cells, which may lead to advances in the treatment of autism and Alzheimer’s disease, the researchers said.
Bill McLamb, chief scientist at Kentucky-based company Space Tango, said, “Space travel reveals the effects Earth has on Earth in only a short time, making it easier to investigate the processes that occur . ” com. “Studying is hard Human mind In space, this is the reason why these types of experiments are so beneficial. “
The probe will take stem cells and convert them into brain cells that will form three-dimensional structures called organisms of the brain. Stored in a special container called a well, mini organs of this type are capable of mimicking both cellular diversity and the function of the developing brain.
This type of research can help NASA and its partners prepare for crew missions to distant destinations such as Mars, Which will expose astronauts to the rigors of space for long stretches, and also help combat degenerative brain disease here on Earth, the researchers said.
A team of researchers from Stanford University will be looking at how heart tissue behaves in microgravity. Cardinal Heart Examination Will send tissue samples that consist of cardiomyocytes, endothelial cells, and cardiac fibroblasts to study how changes in gravity affect the heart at the cellular level.
Researchers know that microgravity leads to changes in the workload and size of the human heart, but it is still unknown whether these changes could be permanent if a person lived for a long time in space.
The tissue bundles of the project will be affixed to tissue chips. Team members said that the results of the experiment could help identify new treatments and support the development of screening measures to estimate heart risk before spaceflight. Follow-up investigations will include treatments that can treat heart disease.
Immune responses in space
HemoCue Investigations will reveal how white blood cells react in space. Here on Earth, doctors use the total number of white blood cells, as well as various types, to diagnose the disease. Hemu will debut a new type of technology, which will allow users to calculate white blood cells in the classroom.
The goal is to test how well the device works in microgravity. If effective, it could be a valuable tool in an astronaut’s medical kit, the researchers said.
Another payload is called Micro-14 How the yeast looks, especially Candida albicansSpace reacts to the atmosphere. C. Albicons Is an opportunistic pathogen capable of causing severe and even life-threatening disease in immunocompromised hosts. Micro-14 will evaluate how yeast reacts to microgravity, in search of changes at the cellular and molecular levels.
Since astronauts can become immune during a spacecraft, researchers are particularly interested in how to predict health risks from this organism. Previous researches have shown that many microbes have increased virulence in a microgravity environment, but more research is needed on this particular pathogen.
NASA’s Jet Propulsion Laboratory in Southern California is launching a project that will take samples of swabs from various locations to see the station. Relationship between bacteria and their metabolites (Chemicals produced by bacterial growth). This project will help researchers to better understand the distribution of microbes and metabolites within closed environments and how this distribution affects human health. Research can assist administrators of hospitals and nursing homes, where residents are often immunocompromised.
related: SpaceX rocket launches record 7th time, nails landing at sea
The hawk flew again
Sunday’s 101st flight for SpaceX’s workhorse two-stage Falcon 9 rocket marked the total. Weightlifting is expected to feature an experienced Falcon 9 first stage named B1058, which already has three flights under its belt. This frequent flyer first launched SpaceX Demo-2 mission, Which sent two NASA astronauts to the space station last summer, as well as A. Communication satellite For a batch of South Korean army and company itself Starlink Satellite.
It has become common to fly SpaceX’s first flying boosters, as the company continues to prove the Falcon 9’s reliability. In fact, the CRS-21 marked the 24th flight of 2020 for SpaceX, with most missions being flown on experienced rockets rather than brand-new ones.
To date, SpaceX has successfully launched its first-stage booster 67 times. Now that the company has two fully powered drone-ship landing platforms – “Course of I Still Love You” and “Just Read the Instructions” – in Florida, it is able to launch (and land) more rockets. “Course I Still Love You” is already in the recovery zone, waiting for its turn to capture the B1058, when it returns to Earth shortly after liftoff.
Weather was a concern for SpaceX going into the weekend. Forecasts predicted iffy weather for Saturday’s launch effort, with the 45th weather squadron predicting a 50% probability favorable conditions For liftoff. The primary concerns were dense clouds and cumulus clouds. Backup attempts on Sunday seem to be much better, with the forecast being 70% on that day.
If all goes to plan, the dragon will arrive at the station and arrive 24 hours after the explosion at the dock at the space-facing port of the Harmony module.
editor’s Note: The story was updated at 8:22 pm EST to include SpaceX’s launch delay on Sunday, December 6 due to inclement weather.
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