What is quantum gravity?

I tried to understand quantum gravity 🌌

“Scientists Are Finally Testing Quantum Gravity” 🌌🔬 Quantum gravity experiments aim to unite Einstein’s gravity with quantum mechanics — the biggest unsolved problem in physics. Scientists are testing gravity at microscopic scales using ultra-sensitive detectors, quantum interference, atomic clocks, and observations of black holes and gravitational waves. These experiments could reveal whether spacetime is discrete, uncover hidden dimensions, or expose new laws of reality beyond known physics.