Quantum Gravity: Bridging Relativity and the Quantum World

Quantum gravity is the quest to unite Einstein’s relativity with quantum mechanics.
Relativity explains gravity on cosmic scales, while quantum theory rules the tiny.
The two theories clash in extreme places, like black holes and the Big Bang.
Quantum gravity seeks a framework where space and time themselves are quantized.
String theory and loop quantum gravity are leading approaches to the problem.
A full theory could explain what happens at a black hole’s singularity.
It might reveal the true fabric of spacetime—discrete rather than continuous.
Experiments hunt for quantum gravity effects in cosmic rays and gravitational waves.
Solving it would give physics a long-sought “theory of everything.”
Quantum gravity is still unsolved, but it could unlock the deepest secrets of the universe.