This fascinates me. I’ve thought for years it would be neat to put some kind of communications package on comets and track them, and take observations of the universe as they travel... and now they are doing it.
I think they should also stash a bottle of Guiness. But thats just me.
I think it was Buzz Aldrin who proposed using asteroids that cross the orbit of both earth and mars as freight haulers.
Good idea for moving cargo that isn’t time sensitive. Land it on the asteroid when it passes earth and in a few years launch the cargo toward mars.
If the asteroid is big enough we could even hollow out a habitat to move astronauts.