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Do you have what it takes to become an astronaut?

Jack Gramenz, June 4, 2020 7:00PM

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NASA astronaut Bob Behnkin (who launched on the SpaceX flight to the International Space Station on May 31) during training. Picture: AP media_cameraNASA astronaut Bob Behnkin (who launched on the SpaceX flight to the International Space Station on May 31) during training. Picture: AP


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The history-making launch of two NASA astronauts to the International Space Station on Sunday morning is getting a lot of people excited about space travel.

That’s good for private space companies, which want to eventually take paying tourists to space.

But for now only a few specially qualified people can go.

Becoming an astronaut has long been a dream career for many children (though a survey conducted for toymaker Lego in 2019 found a third of kids between eight and 12 now dream of careers as YouTubers).

If you want to become part of the next generation of NASA astronauts you’ll need more than a dream and lots of good luck.

1969 Moon Landing Unseen media_cameraAstronaut Michael Collins in the training centrifuge before the Apollo 11 mission in 1969. The centrifuge would swing at high speed, simulating the G-forces astronauts would experience during launch and re-entry. From the book Rare Views and Undiscovered Moments. Picture: NASA/ University Press of Florida

The first astronauts were chosen by the military. They were engineers* and had experience flying jets.

However, the Mercury spacecraft was only so big, so even if you were qualified, those taller than 180cm were rejected because they wouldn’t fit inside.

The current height restriction has been lifted to 190cm, with a minimum of 157cm.

If you want to be a NASA astronaut nowadays you’ll also need a master’s degree* in a STEM (Science, Technology, Engineering and Mathematics) area of study from one of the universities NASA has approved.

Even after you get the right degree from the right school you need to have at least two years experience working in a relevant* job.

An example of the kind of experience you need is at least 1000 hours as the pilot-in-command aboard a jet aircraft.

media_cameraNASA Astronaut Scott Kelly trains inside a Soyuz simulator at the Gagarin Cosmonaut Training Center in Russia. Russian cosmonaut Mikhail Kornienko and Kelly together flew a nearly year-long mission on the International Space Station, returning to Earth in March 2016. Picture: NASA/Bill Ingalls

You also have to be a citizen of the US.

And astronauts need to pass NASA’s long-duration space flight physical, which requires you to have good vision (or at least not so bad that it can’t be corrected to 20/20* in each eye).

Your blood pressure* also needs to be below 140/90 while sitting.

If you manage to make it past that stage, NASA’s next chance to dash* your dreams comes in the form of a week-long process of personal interviews and medical checks.

If you pass those and are selected by NASA then congratulations, you’re an astronaut candidate*!

media_cameraNASA introduces 12 new astronaut candidates at Johnson Space Center in Houston, Texas, US, about to complete two years of training. Picture: NASA/James Blair

Time to pack your bags because you’re off to Houston, Texas, US for another two years of training and testing at the Astronaut Office at the Johnson Space Centre.

Here’s where things start to get really difficult, but NASA will at least pay you for your time.

Astronaut candidates are paid between $77,573 and $169,852 a year in the program, depending on the level of experience they enter with.

Candidates complete military water survival training and scuba* qualifications to prepare for space walking.

While the program can take two years, within the first month you need to be able to swim 75m without stopping, and then do it again wearing a flight suit and tennis shoes.

The flight suit stays on for the next test: Treading water for 10 minutes.

media_cameraAstronaut Kjell Lindgren waves just before going underwater for training in the Neutral Buoyancy Lab at the NASA Johnson Space Center in 2019. Picture: Michael Wyke

Candidates also go through atmospheric pressure training.

Another ordeal* to get through is microgravity exposure by flying in a modified jet that

climbs to an altitude and then dives back towards the ground so that those on-board experience weightlessness for up to 20 seconds at a time.

The plane then climbs back up to the right altitude and repeats the process, sometimes as many as 40 times a day.

Other flight experience is also required.

Astronauts who were already pilots fly 15 hours a month in a T38 trainer jet, while non-pilot astronauts do at least four hours a month.

You’ll also need to learn how to speak Russian in order to be able to communicate with cosmonauts* aboard the International Space Station.

Do you have what it takes?

media_cameraNASA SpaceX astronauts Douglas Hurley (right) and Robert Behnken (2nd right) arriving after the hatch opened to the International Space Station posing with other astronauts on May 31. Picture: AFP/NASA TV/handout


  • engineers: experts in designing solutions for problems in construction, technology and science
  • master’s degree: a university qualification higher than the first degree
  • relevant: closely connected or related to
  • 20/20: normal vision, which means you can see clearly from a distance of 20 feet (6m)
  • blood pressure: a measure of how hard your heart is working to pump blood around your body
  • dash: ruin or end
  • candidate: person being considered for a job
  • Scuba: acronym for Self-Contained Underwater Breathing Apparatus, which diver’s use
  • ordeal: difficult experience to be endured
  • cosmonauts: Russian name for astronauts


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Astronauts recall flawed Apollo 13 mission


  1. In the Lego survey, what career did one third of kids want?
  2. What is the current height range for NASA astronauts?
  3. How do the astronauts get microgravity exposure?
  4. What is the name of the trainer jet they fly?
  5. Why would you need to speak Russian?


1. Write a Job Ad
Imagine you are in charge of hiring astronauts for NASA. Use the information in today’s story to write a job advertisement for new astronauts. Include any other things you think people would need to be considered.

Time: allow 20 minutes to complete this activity
Curriculum Links: English

2. Extension
Write a story that starts with: “Could I tread water in my flight suit for 10 minutes? I was about to find out … ”

Time: allow at least 20 minutes to complete this activity
Curriculum Links: English

Verb adventures
With a partner see if you can identify all the doing words/verbs in this text. Highlight them in yellow and then make a list of them all down your page. Now see if you and your partner can come up with a synonym for the chosen verb. Make sure it still makes sense in the context it was taken from.

Try to replace some of the original verbs with your synonyms and discuss if any are better and why.

HAVE YOUR SAY: What would you like to do when you grow up?
No one-word answers. Use full sentences to explain your thinking. No comments will be published until approved by editors.

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