How have humans adapted to life in space?
Curious Kids: can people live in space?
Humans are great at living in tough places. Even before we developed modern technology, we had spread out to live in all of Earth’s continents – from the really cold areas in North America, Europe and Asia, to the hottest parts of Australia. But there are still lots of places on Earth humans can’t normally survive – like underneath the ocean, or at the South Pole. Those places are dangerous – without protection, you would die in seconds or minutes. But, thanks to modern technology, we’ve worked out how to live there. People can live for months at a time under the oceans, or down at the icy South Pole.
How do they manage it? Well, they find a way to make the conditions there more like what we’re used to at home. To live underwater, people build submarines. They’re warm and dry inside – perfect conditions for people to live in. People take food, oxygen and water with them into submarines, and use electricity to power lights and heaters. In other words, they change a cold, dark and dangerous place (deep beneath the ocean) into something like a home. We do the same at the South Pole. We build special buildings, and dig tunnels, and make them warm and dry. The people who live there take food and water with them, and there’s extra heating so people don’t freeze in the Antarctic winds and ice.
But you can’t live in these cold, dark places forever. Humans don’t cope well if they don’t get enough sunlight, so they do need to get back to “normal life” after a while. And it’s really expensive to bring all the food, water, air and energy to these places.
The space station is like a submarine built especially for space. A giant tin can, filled with air, and kept nice and warm – not too hot, and not too cold. It protects the astronauts from the cold of space, gives them air to breathe, and protects them from all that nasty radiation. We send up regular shipments of food and drink – everything they need to survive. In other words – we’ve found a way to let people live outside Earth, and we do it by making the place we want to live just like home. Again, though, it’s not safe for people to live their forever, and being in space for a long time isn’t good for your body.
If people ever get to live on Mars, or on the Moon – or other places in the Solar system (and beyond) – it will be because we have found a way to make those places nice, safe and a bit more like home. Whilst living on the Moon or Mars sounds like science fiction, people are talking seriously about doing just that in the future. It would be very dangerous, and really expensive. But who knows what the future holds?
How do they manage it? Well, they find a way to make the conditions there more like what we’re used to at home. To live underwater, people build submarines. They’re warm and dry inside – perfect conditions for people to live in. People take food, oxygen and water with them into submarines, and use electricity to power lights and heaters. In other words, they change a cold, dark and dangerous place (deep beneath the ocean) into something like a home. We do the same at the South Pole. We build special buildings, and dig tunnels, and make them warm and dry. The people who live there take food and water with them, and there’s extra heating so people don’t freeze in the Antarctic winds and ice.
But you can’t live in these cold, dark places forever. Humans don’t cope well if they don’t get enough sunlight, so they do need to get back to “normal life” after a while. And it’s really expensive to bring all the food, water, air and energy to these places.
The space station is like a submarine built especially for space. A giant tin can, filled with air, and kept nice and warm – not too hot, and not too cold. It protects the astronauts from the cold of space, gives them air to breathe, and protects them from all that nasty radiation. We send up regular shipments of food and drink – everything they need to survive. In other words – we’ve found a way to let people live outside Earth, and we do it by making the place we want to live just like home. Again, though, it’s not safe for people to live their forever, and being in space for a long time isn’t good for your body.
If people ever get to live on Mars, or on the Moon – or other places in the Solar system (and beyond) – it will be because we have found a way to make those places nice, safe and a bit more like home. Whilst living on the Moon or Mars sounds like science fiction, people are talking seriously about doing just that in the future. It would be very dangerous, and really expensive. But who knows what the future holds?