Nuclear Magnetic Resonance, or NMR, is a scientific technique used to observe the magnetic properties of atomic nuclei. It is commonly employed in chemistry and biochemistry to determine the structure of molecules, as it provides detailed information about the arrangement of atoms within a compound. In NMR spectroscopy, a sample is placed in a strong magnetic field and exposed to radiofrequency radiation. This causes certain nuclei, typically hydrogen or carbon, to resonate, allowing scientists to gather data about the molecular environment. The resulting spectra can reveal insights into molecular dynamics and interactions.