der Weltraum
Translation
space, outer space
Examples
Astronauten fliegen in den Weltraum.
Astronauts fly into space.
Die Erforschung des Weltraums ist teuer.
The exploration of space is expensive.
Grammar Patterns
((in+acc)) into space Astronauts fly into space.
Similar Words
Universum (universe), Kosmos (cosmos)
Etymology
Composed of 'Welt' (world) and 'Raum' (space/room). Literally 'world-space'.
Memory Tips
Think of it as the 'room' or 'space' (Raum) of the 'world' (Welt), extending outwards.