The International Space station has these nano labs : little research block payloads. I think this is very inspiring for Protei as we can fit many blocks in the long tail.
Protei is an unmanned shape-shifting sailing robot developed Open Hardware by a global community of makers called Open-H2O (former Open_Sailing) the collective randomwalks and Amorphica. Protei has no rudder nor centerboard : the entire hull bends to control this sailing robots providing it unprecedented sailing properties. Originally developed to clean up oil spill, Protei will be used to measure radioactivity, plastic debris, monitor fisheries, coral reefs, algae blooms, provide general oceanographic data or serving as surface satellite link to underwater vehicles.
Protei has been produced by the V2_in Rotterdam, NL. Protei has been generously funded by over 300 backers on Kickstarter. Everyone is welcome to join, contribute, modify, produce, distribute the design and share their findings.