If we explore outer space and go to other planets, how long can human beings live?

This mainly depends on whether the materials are sufficient. If there is food, water, oxygen, etc., it can survive for a while. Outer space has always been like a treasure chest, attracting us to explore and want to know more. However, the human body has some limitations, for example, we can't live without oxygen, water and food. Therefore, it is more difficult for us to live freely in barren outer space. If we want to live in outer space, we must have materials that can be used by us.

In a movie "Mars Rescue", the hero was injured by the external environment and left him on Mars in chaos. Just when all his partners thought he was dead, he survived in the space station above Huo Ying, and successfully contacted his companions on the earth, who successfully brought him back to the earth. The hero lived alone on Mars for a long time, but it should be noted that this is because there is a well-equipped space station on Mars with oxygen for him to use. There is even food, and it is because of these existing equipment that he can live. Even so, life is still very difficult.

We can't live on other planets without any supplies. First of all, we can't live without oxygen, but there is no oxygen on some planets that we have found so far, so it is difficult for us to live just for this. Water is the source of life, and we can't live without boiling water, as well as various energy intakes of food.

To sum up, if we just go to other planets without any matter, we can't survive, but if there is matter, we can still survive on other planets for a while. This is similar to the situation of our astronauts now.