Once exposed to a vacuum, there would be maybe 10 seconds or so of useful consciousness.
After passing out, it would take a few minutes for vital tissues (brain & heart) to be irreversibly damaged from hypoxia.
If you go into space without a spacesuit, you would experience a rapid drop in pressure, causing your bodily fluids to boil and leading to decompression sickness. You would also be exposed to harmful levels of radiation and extreme temperatures, resulting in rapid hypothermia or hyperthermia. Ultimately, you would not survive for long due to the hostile conditions of space.
A human would not be able to survive on Mars without a spacesuit and life support systems. The lack of breathable air, extreme temperatures, and absence of liquid water make it inhospitable for human life.
Astronauts can survive in space for a limited amount of time without protection due to the lack of oxygen and extreme temperatures. In the vacuum of space, they would quickly lose consciousness due to lack of oxygen, but the exact time frame can vary based on the individual. With the appropriate gear and protection, such as a spacesuit or spacecraft, astronauts can survive for extended periods of time in space.
It can take 2 hours to put on a space suit.
Indefinitely. With food water and oxygen Edited: Without gravity the human body would soon loose function of their organs and muscles. Which includes heart, liver, lungs. Only a few months without gravity the human body starts experiencing these effects. NASA has a strict exercise regiment for astronauts to prolong the unwanted effects. With exercise a human can live in a contained area with food, water, and exercise for a few years.
until your air runs out or forever
as long as you are wearing a spacesuit
If a human being exposed to open space without spacesuit, due to pressure difference he cannot breathe & within minutes he will die.
If you go into space without a spacesuit, you would experience a rapid drop in pressure, causing your bodily fluids to boil and leading to decompression sickness. You would also be exposed to harmful levels of radiation and extreme temperatures, resulting in rapid hypothermia or hyperthermia. Ultimately, you would not survive for long due to the hostile conditions of space.
Not long
Of coarse they would, we humans can survive weeks without food as long as there is an intake of water.
You need energy to survive, so you cannot survive without energy.
Not long with oxygen, about two seconds without it.
It would depend on the occasion...is it a wedding, a football match or a barbeque?
It theory, it is possible. But would you want to? Most people can survive a long time without food, but a much shorter time without water.
The ability to store water and the ability to survive long time without getting water.
Without any form of protection about 30 seconds of pure agony.