Assuming panspermia is correct, we could just continue to improve sampling of stuff coming here. Also sampling earth-originated organic materials from some dist

Assuming panspermia is correct, we could just continue to improve sampling of stuff coming here. Also sampling earth-originated organic materials from some distance away. This could give us some pretty good data on variety, density, duration. Under this assumption I'd most like to estimate the number of discrete seeders in our vicinity and their interconnectedness.