What if I just took a ship and . . . and flew up to the comet cloud?

In the outer comet cloud.

When we got out into space, we found there were organics all over the place, and they could cross interstellar distances by hopping rides with comet clouds.

Some of those specimens are purely terrestrial, some are from original orbits we don't know, the asteroid belt, the outer comet cloud, who can tell?

As the Sun passes nearby stars, our Oort Cloud will encounter, and partially pass through, other comet clouds, like two swarms of gnats interpenetrating but not colliding.

When his ship and her companions pierced the comet cloud, Bryadan tapped an intercom button.

They feed on the electric potentials that trickle through the comet clouds.

Asteroid belts, where they existed, could pose real problems, and comet clouds were a nightmare.

In the vast majority of solar systems the spaces between the inner system and the comet cloud were easy to search for big, obvious things and pointless to search for small things or anything trying to hide.

It was small, operating mainly in the comet cloud.