Question

what is space time curvature

Answer 1

Here is ur answer ji
In Einstein's geometric theory of gravity, the situation is described in a completely different way : A mass that we place in an region of space will lead a distortion of space time.
Empty space time is flat - it looks exactly like the space time of special relativity.
Space time in the presence of masses is curved.
Hope it helps you out ji
Thanku ji

Answer 2

according to Einstein's theory of Relativity, the universe in woven in a fabric of space and time. this fabric is kind of flexible, and van be bent by (strong) gravity. this curvature of the space-time continuum by gravity is called space-time curvature, which leads to cool things like blank holes, bending of the paths of light and stuff.