Famous abadoned ships, materials, biology, minefield... versatile discoveries in path

I really would like to see more versatile discoveries/minor events that affecting to ships/science discoveries. It would be great to add abadoned famous ships, materials, biology, old military or such thing. Also would be a nice addition, to only see the discoveries, and the tech tree if that something affects it, else please keep totally hidden them. Also would be interesting to have every faction different tech tree, and when it's conquered would be awesome to see as the scientists are combining them, and making it available after some time. I also miss cultural events as a mention, as an event to see as time passing.