Wormhole mapping is what makes the wormholes work along side with being able to go back into High sec to the main hubs to sell the riches you find within the wormhole adventures. This done best by using the 3rd party website Tripwire https://tripwire.eve-apps.com/

Tripwire is an amazing program that is a must use when wanting to do any adventures in a wormhole. The main way Tripwire works is the corp sets up an admin account and then the corp members make their accounts to join tripwire and select the option to their corp to be linked and then from there every member can share all the information they find forming one map of the wormhole and wormholes showing routes on how to get back to high sec through chains of wormholes and all of the Signatures that are in each wormhole as well. https://www.youtube.com/watch?v=zw-FN8GiOpk