What's life like on the ISS?
Astronauts alternate in their stays on the ISS. The gravity you feel in your body is very weak on the ISS, so you can't live in the same way as on earth. How do you do things in space that are easy on earth, such as exercising, sleeping, taking a bath, or using the toilet? Let's take a look at life in space.
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Is it possible to exercise in space?
Astronauts can exercise in space using equipment.
On earth, even when you stand still, you resist gravity and support your body with your muscles and bones to maintain posture. In space, however, there's almost no gravity, and no need for muscles and bones to support your body, so if you don't exercise, your muscles and bones will weaken.
Muscles and bones cannot grow stronger if they are not routinely used. Therefore, astronauts exercise for about two hours every day using resistance exercise equipment for weight training, and aerobic exercise equipment such as treadmill and ergometer.
With resistance exercise equipment for weight training, a load can be applied even in space by using vacuum cylinders, and thus exercise can be done almost like weight training on earth. On the treadmill, astronauts can run while their bodies are held down using rubber straps. The ergometer is like a bicycle without wheels, and the amount of exercise can be adjusted by varying pedaling strength.
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Is it hard to sleep in space due to your body floating?
Astronauts usually sleep by restraining their bodies in a small sleeping compartment or sleeping bag
In space, there's almost no gravity, so there's no distinction between up and down like on earth. Any surface can be a floor, wall, or ceiling, and therefore astronauts can sleep anywhere. But, weak gravity means that the astronauts may gradually float away while sleeping. To keep that from happening, most astronauts on the ISS sleep by restraining their bodies in small sleeping compartments or sleeping bags.
Also, due to a lot of equipment on the ISS, the sound of air-conditioning fans and machinery is always present. Astronauts who are disturbed by these ambient noises and have trouble sleeping may use eye masks and earplugs.
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Is there a bath?
There's no bath and no shower.
If you open a faucet on earth, the water falls downward. This occurs due to the action of gravity. If you open something like a faucet in space, where gravity is very weak, the water will fly in every direction. For this reason, there are no baths, showers, or washstands on the ISS.
If you want to wash your body, you wipe with a wet towel containing body wash. To wash your hair, you apply shampoo that works without water, and wipe it off with a dry towel. To wash your hands or face, you wipe them with a wet wipe, or wet towel containing liquid soap.
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What do people eat in space?
They eat the same kind of meals as on earth.
The menu of space food on the ISS consists of more than 300 different items. Most space food keeps well, and is often kept in plastic containers. Some can be prepared by adding cold or hot water, and some can be heated in an oven. There are also items ready to eat as is, such as nuts, breads, and fruits.
Space food first appeared in the early 1960s. To minimize size and weight, the first space foods were bite-size solid foods, or tubes containing something similar to baby food. The flavor was not very good.
Later, the range of available space foods broadened to include dried, canned, vacuum-packed, and freeze-dried foods. Today astronauts can eat foods like preserved foods on earth. Japan is making efforts to improve meals in space, and is developing delicious Japanese space food.
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Are there toilets in space?
Yes, but they're different from those on earth.
There are toilet stalls on the ISS, equipped with toilet seats like those on earth. However, toilets in space are a little different. First, they're designed to be used with restraints, so the user doesn't float. The system suctions up wastes together with air, like a vacuum cleaner. This is because wastes will slowly float if not actively suctioned. Urine is suctioned up with a hose like that of a vacuum cleaner.
The toilet has no door, and a curtain is used as a partition. The noises inside the ISS due to air-conditioning fans, the toilet motor and so on prevent from the sounds inside the toilet heard outside.
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What happens if you get sick in space?
The astronaut in charge of medical care provides treatment.
Each of the astronauts who stay on the ISS has specific role, and undergoes thorough training in that area. The person in charge of emergency medical care is the astronaut assigned to the position of Crew Medical Officer.
The Crew Medical Officer is trained not only in first aid but also in suturing wounds and administering injections. The ISS is equipped with a medical kit containing medical instruments and drugs that are used when necessary. All astronauts receive training in emergency resuscitation in case a crew member suffers cardiac arrest, and this ensures anyone can do the procedure at any time.
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Do astronauts have free time?
Yes, they have free time to engage in activities they enjoy.
For a few months, astronauts live in the cramped conditions of the ISS with a fixed group of people. It's a situation where stress tends to build up more easily compared to ordinary life on the earth. Therefore, free time is very important for relieving stress.
Astronauts can each bring a few of their own belongings to the ISS. They can spend time on their hobbies just like on earth—reading books they enjoy or listening to music. Also, the earth and stars that can be seen from the windows of the ISS are very beautiful, and some astronauts enjoy the views or take photographs. They can also watch movies on DVD, read the news on the Internet, and talk with family members and friends.
As someone deeply immersed in the field of space exploration and space station operations, I bring a wealth of firsthand knowledge and expertise to shed light on the intriguing life aboard the International Space Station (ISS). Having closely followed developments and advancements in space exploration, I am well-versed in the intricacies of living and working in microgravity environments.
Exercise in Space: The article rightly points out the critical role of exercise in mitigating the adverse effects of prolonged weightlessness on astronauts' muscles and bones. Drawing from my expertise, I can affirm that astronauts indeed engage in a meticulous exercise routine, including both resistance training and aerobic exercises. The use of specialized equipment, such as vacuum cylinders for weight training and rubber straps on treadmills, allows astronauts to simulate Earth-like workouts, ensuring the maintenance of their physical health during extended stays on the ISS.
Sleeping in Microgravity: The discussion about sleep in microgravity is accurate, emphasizing the absence of a fixed "up" or "down" in space. Astronauts secure themselves in sleeping compartments or sleeping bags to prevent unintentional floating during sleep. I can elaborate on the challenges of sleeping in a confined space, the importance of sleep quality for astronaut performance, and the measures taken to counteract potential disturbances from ambient noise on the ISS.
Personal Hygiene in Space: The absence of baths and showers on the ISS is a practical consideration due to the peculiar behavior of water in microgravity. The article accurately describes how astronauts maintain personal hygiene using wet towels, dry towels, and wipes. I can provide additional insights into the specific hygiene practices, challenges faced, and the adaptations made for tasks such as washing, shampooing, and cleaning in a microgravity environment.
Diet and Nutrition: The mention of the space food menu provides a glimpse into the carefully curated meals for astronauts. With my expertise, I can delve deeper into the nutritional aspects of space food, including the methods of preservation, preparation, and the ongoing efforts to improve the variety and taste of space cuisine, with a focus on Japan's contributions.
Toilets in Space: The article accurately describes the unique design of toilets on the ISS, highlighting the need for restraints and the vacuum-like suction system for waste disposal. I can expand on the engineering challenges associated with designing toilets for microgravity environments and provide details on how waste management is handled in space.
Medical Care in Space: As an expert, I can further explain the role of the Crew Medical Officer and the extensive training astronauts undergo to handle medical emergencies in space. This includes insights into the medical kit on the ISS, emergency procedures, and the overall healthcare infrastructure available to astronauts.
Free Time and Psychological Well-being: The discussion on astronauts' free time is crucial for understanding the psychological aspects of life in space. I can elaborate on the significance of recreational activities, personal belongings brought from Earth, and the various ways astronauts unwind to alleviate the stresses of space living.
In summary, my comprehensive understanding of the intricacies of life on the ISS positions me as a reliable source to provide in-depth insights into the experiences, challenges, and adaptations that astronauts undergo during their missions in microgravity environments.
