Reynolds looked impatient; he likely knew about the ion cloud already.

Within the hour, fifty-two ships were waiting outside the ion cloud through which Serenity 's course would take it.

The twisted ion clouds appeared on the screen.

The Bokra shuddered as they entered the ion clouds of the nebula.

After setting a course for the beacon, they find it in an ion cloud and grow suspicious.

Each enhancement showed more detail in the diffused ion cloud.

Here the ion cloud is trapped in the first Penning trap (for cooling).

By a fast transistor switch one is able to select the central part of the ion cloud (Newton sphere).

Effective as an ion cloud, don't you think?

Sensors only picked it up as an ion cloud.