The Riemann hypothesis is a conjecture that suggests that all non-trivial zeros of the Riemann zeta function are located on the critical line. It is important because many important mathematical concepts are linked to it, and its verification would have far-reaching consequences in number theory and other fields. Its proof or disproof would usher in a new era of insight into the distribution of prime numbers. However, it remains unproven, making it one of the most important unsolved problems in mathematics.