Physics
Spacetime Curvature
Quick fact
The Sun's mass curves spacetime around it, causing planets to orbit instead of flying off into space.
Why this is interesting
Have you ever wondered why objects fall toward Earth or why light bends near massive stars? The answer lies in the way spacetime itself is curved.
Read the full explanation
Understanding Spacetime Curvature
Imagine a rubber sheet stretched out. If you place a heavy ball on it, the sheet sags. Similarly, massive objects like stars and planets bend the fabric of spacetime around them. This curvature is what we experience as gravity. The more mass an object has, the more it warps spacetime, pulling other objects toward it.
A deeper explanation
Spac, time curvature describes how mass and energy alter the geometry of space and time itself. According to Einstein's General Relativity, gravity isn't a force like in Newtonian physics—it’s the result of objects moving along the shortest path (geodesic) in this curved spacetime. This explains phenomena such as light bending near massive objects, black holes forming from extreme curvature, and time dilation near strong gravitational fields.