Do wormholes actually exist, and if so, what implications do they have for our understanding of the universe?

Yes, wormholes are theoretical passages through spacetime that could potentially exist according to some scientific theories, such as general relativity. If wormholes were to exist, they could have significant implications for our understanding of the universe by potentially allowing for faster-than-light travel and providing shortcuts through space and time. However, their existence has not been proven, and much more research and evidence are needed to confirm their existence and understand their implications fully.