Astronauts do not need to walk on the moon to conduct experiments or gather samples. They can use rovers and specialized equipment to explore the surface without walking. Walking on the moon would be difficult due to the moon's low gravity and lack of atmosphere.
They need to take it with them. There is no oxygen in space
The original meaning of astronauts refers to individuals specifically trained for traveling in space and exploring outer space. The term is derived from the Greek words "astro," meaning star, and "naut," meaning sailor, reflecting their role as explorers of the stars.
Astronauts wear spacesuits due to the absence of pressure in space. They need to maintain the pressure level on Earth by isolating themselves from actual space. For the helmets: there is no oxygen in space. Humans require oxygen to live, inhaling it through their nose and mouth. Therefore if they do not wear helmets, they will die instantly from loss of oxygen.
food, water, shelter
You need space food to give nutrition to astronauts. They need energy to perform tasks thus need food.
their suits are very heavy.
No , but for astronauts visiting from other nations they do need passports to travel to the respective countries who are launching them into space e.g. the U.S. , Russia .
trained space astronauts
Astronauts are people who fly in space
They need to wear something that is thick and something that is a space suit... they for sure need to put their pee on their face.
Most astronauts have to go to the hospital anyways for a check up before they leave for space. Some astronauts get hurt or injured n space and may need to get tothe hospital when they return. When astronauts get back they have an examination too. Astronauts are highly trained, but they are still human and can get sick or injured like anyone else.