cosmonaut
 
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SMART Vocabulary: related words and phrases

Space travel
airlock
autopilot
biosatellite
blast
capsule
cosmonaut
escape velocity
EVA
flyby
launcher
rocket science
rocket scientist
space capsule
space probe
space shuttle
space tourism
space tourist
spacesuit
spacewalk
touchdown

You can also find related words, phrases, and synonyms in the topics:

Air travel: workers on/with aircraft & spacecraft

Examples from literature

A major challenge for astronauts is the low-gravity, or micro-gravity environment, which means they must re-learn how to move the body. 
Although scientists have learned how to solve these problems through exercise, diet, and medicines, astronauts who spend long periods of time in micro-gravity conditions still find they are very weak when they return to Earth’s higher gravity. 
Astronauts often sleep tied into special beds so they do not hurt themselves while they are unconscious. 
Gold is used to protect astronauts from the brightness and heat of the sun. 
Many early achievements were Russian, such as the first rocket to orbit the Earth (1957), the first astronaut (Yuri Gagarin, 1961), and the first woman in space (Valentina Tereshkova, 1963). 
Mars One began the selection of the astronauts in 2013. 
Polyakov’s experiences showed that astronauts could spend long periods of time in space without suffering long-term problems, although there are still questions about whether humans could live for many years in this kind of environment. 
To prepare themselves for this environment, astronauts spend months training underwater. 
When astronauts go to space, they float due to the lack of gravity. 

astronaut | American Dictionary

astronaut
noun[ C ]
us/ˈæs·trəˌnɔt, -ˌnɑt/
a person who is trained for traveling in spacecraft

Examples of astronaut

astronaut
When the astronaut goes into the computer and takes out the memory modules, the body of the computer is brought into view.
In short, news and communications channels ought to be established as part of the astronauts' environment, not as last-minute add-ons.
The space community, whether short term or longer term, is a bounded behavioural system and the implications for astronauts are immense.
The last astronaut in the spaceship goes into the computer and shuts it down by taking out the memory modules.
She picks up a male in an astronaut uniform from the sidewalk and drives away.
At that time samples of rock and soil were collected by the mission's astronauts.
Anxiety detection task individually with the robot being responsive to the astronaut's affective states (for instance stress, panic or fatigue).
Such an automated remote sensing system would greatly reduce astronaut time required for monitoring crop productivity.
Skepticism and distant toleration of female astronauts only gradually turned into acceptance by male colleagues.
First, in order to engage the child in the procedure, the experimenter told the child to pretend that s/he was an astronaut flying through an asteroid field.
The first is the re-usable "shuttle" launcher to ferry payloads, including personnel without astronaut training, between earth and low-earth orbit.
From the
Hansard archive