What are some interesting facts about wormholes?

Could you please enlighten me on some fascinating tidbits regarding wormholes? I'm particularly interested in understanding their theoretical existence, potential applications in physics, and any hypothetical connections they might have to interstellar travel. Additionally, I'm curious about any experimental evidence or ongoing research that might be exploring the reality of these mysterious phenomena. Could you elaborate on these points and perhaps share any intriguing anecdotes or theories surrounding wormholes?