spacetime; space-time
Physics term referring to the four-dimensional continuum combining space and time.
In the story, the protagonist crosses spacetime to another world.
In Einstein's theory, gravity is explained as a curvature of spacetime.
SF作品では時空を超えた旅がよく描かれる。
Travel beyond spacetime is often depicted in science fiction works.
The theory explains that strong gravity causes spacetime to warp.
The idea of traveling through spacetime with a time machine is a staple of science fiction.
That being is said to have appeared from beyond spacetime.
空間 means space or spatial extent by itself, whereas 時空 fuses that space with the dimension of time.
space-time
super-dimensional; transcending spacetime
space-time; space-time continuum
spatiotemporal space
space-time continuum
Minkowski spacetime
Compound of 時 (time) and 空 (space), directly corresponding to the English 'spacetime'. The term was coined in the context of modern physics.