Quantum Gravity Phenomenology

Quantum Gravity Phenomenology is the study of how quantum mechanics and gravity might interact at very small scales, near the Planck length. Since direct experiments are challenging, scientists look for indirect signs—like tiny deviations in high-energy cosmic rays or subtle effects in light from distant stars—that could reveal clues about the true nature of spacetime. This field aims to bridge our understanding of the universe’s smallest building blocks with its largest structures, seeking observable evidence for theories that unify quantum physics and gravity.