What does "space exploration" mean?

Investigation of interplanetary or interstellar space, its properties, biology and the bodies within it; usually with the use of spacecraft.

What is a synonym for "space exploration"?

Common synonyms include: solar-system exploration, spacefaring, spaceflights.

noun

noun ·Rare ·Advanced level

Noun

1
Investigation of interplanetary or interstellar space, its properties, biology and the bodies within it; usually with the use of spacecraft. countable, uncountable