We're collecting things that are very ancient and even older than our solar system. We are literally reaching for the stars.
We are collecting the actual building blocks the solar system was formed from 4.5 billion years ago. We believe that the particles have a lot of information stored in them.
This is a history project. We are going to the edge of the solar system, collecting the original building blocks of the planets and bringing them back to our labs.
The fundamental reason for this mission is that we are collecting what we believe are the best preserved samples of the formation of our solar system and they are preserved because they formed these comet bodies beyond the major planets out beyond Neptune.