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space medicine
Space of dimension
Space of four dimensions
Space of three dimensions
Space of two dimensions
space platform
space probe
space program
space rocket
Space rule
space shuttle
space sickness
space station
Space suit
Space travel
space vehicle
-- Space walk --
space writer
space-cadet keyboard
space-reflection symmetry
space-time
space-time continuum
spacecraft
spacecraft clock time
spacecraft event time
spaced
spaced-out
spacefaring
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Space walk

n.

1.

any activity by a human outside of the protective environment of a spacecraft while it is in outer space, requiring a space suit to protect the person from the vacuum and other hazards of space.

Noun

1.

space walk - any kind of physical activity outside a spacecraft by one of the crew

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