Treasure hunt?

After the Crusade update I noticed a build item in my Shipyard called "Treasure Hunt" the description being" "Subsidizes a private venture to an unknown places to find and collect valuable artifacts."  I've built this a couple times and there has been no messages, no new ships launched and nothing reported found.   There are a couple other missions listed as well that cost some resource or another.  How does this work? Will I get some sort of message of the status of these hunts?  Is there some where I can look at the progress of these hunts?  

Thank you.