Daily Bulletin


The Conversation

  • Written by Jonti Horner, Professor (Astrophysics), University of Southern Queensland

Curious Kids is a series for children. If you have a question you’d like an expert to answer, send it to curiouskids@theconversation.edu.au You might also like the podcast Imagine This, a co-production between ABC KIDS listen and The Conversation, based on Curious Kids.

Can people live outside Earth? – Holly, age 7, Toowoomba.

That’s a great question, Holly. The short answer is yes, but it’s really, really difficult.

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.

Read more: Curious Kids: why is the Sun orange when white stars are the hottest?

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.

can people live in space? People live at the Amundsen-Scott South Pole Station all year around - even during the six month long Antarctic night! Mradyfist at English Wikipedia

Read more: Curious Kids: What plants could grow in the Goldilocks zone of space?

Space is very dangerous – and without protection, people would not be able to survive there. In space, there’s no air – so you couldn’t breathe. It’s cold – so you’d freeze. And there’s lots of nasty radiation (from the Sun, and from the rest of the Universe), so you’d get really, really bad sunburn. But despite all that, we have people living in space all the time!

There’s this amazing place orbiting the Earth called the International Space Station – and there are people who live there, all day, every day. You can sometimes even see it from your back yard, on a clear night!

can people live in space? That white line is the International Space Station passing overhead. This picture was taken using a photographer’s trick called ‘long exposure’ which makes the space station show up as a white line in the night sky. Flickr/Adam Baker, CC BY can people live in space? This is what the International Space Station looks like, close up. NASA/Crew of STS-132 [Public domain]

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.

can people live in space? Here’s an astronaut on a space walk outside the International Space Station. NASA's Marshall Space Flight Center, CC BY

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?

Read more: Curious Kids: Do astronauts get space sick when they travel from Earth to the International Space Station?

can people live in space? Hello, curious kids! Have you got a question you’d like an expert to answer? Ask an adult to send your question to curiouskids@theconversation.edu.au Please tell us your name, age and which city you live in. We won’t be able to answer every question but we will do our best.

Authors: Jonti Horner, Professor (Astrophysics), University of Southern Queensland

Read more http://theconversation.com/curious-kids-can-people-live-in-space-120334

Writers Wanted

How Australian vice-chancellors' pay came to average $1 million and why it's a problem

arrow_forward

The Average Water Bill in Sydney

arrow_forward

The Conversation
INTERWEBS DIGITAL AGENCY

Politics

Prime Minister Interview with Ben Fordham, 2GB

BEN FORDHAM: Scott Morrison, good morning to you.    PRIME MINISTER: Good morning, Ben. How are you?    FORDHAM: Good. How many days have you got to go?   PRIME MINISTER: I've got another we...

Scott Morrison - avatar Scott Morrison

Prime Minister Interview with Kieran Gilbert, Sky News

KIERAN GILBERT: Kieran Gilbert here with you and the Prime Minister joins me. Prime Minister, thanks so much for your time.  PRIME MINISTER: G'day Kieran.  GILBERT: An assumption a vaccine is ...

Daily Bulletin - avatar Daily Bulletin

Did BLM Really Change the US Police Work?

The Black Lives Matter (BLM) movement has proven that the power of the state rests in the hands of the people it governs. Following the death of 46-year-old black American George Floyd in a case of ...

a Guest Writer - avatar a Guest Writer

Business News

Nisbets’ Collab with The Lobby is Showing the Sexy Side of Hospitality Supply

Hospitality supply services might not immediately make you think ‘sexy’. But when a barkeep in a moodily lit bar holds up the perfectly formed juniper gin balloon or catches the light in the edg...

The Atticism - avatar The Atticism

Buy Instagram Followers And Likes Now

Do you like to buy followers on Instagram? Just give a simple Google search on the internet, and there will be an abounding of seeking outcomes full of businesses offering such services. But, th...

News Co - avatar News Co

Cybersecurity data means nothing to business leaders without context

Top business leaders are starting to realise the widespread impact a cyberattack can have on a business. Unfortunately, according to a study by Forrester Consulting commissioned by Tenable, some...

Scott McKinnel, ANZ Country Manager, Tenable - avatar Scott McKinnel, ANZ Country Manager, Tenable



News Co Media Group

Content & Technology Connecting Global Audiences

More Information - Less Opinion