Now the reactor head must be replaced, a task that has required cutting a big hole through a containment dome several feet thick.

Whatever lies inside that broken containment dome scared our ancestors half to death.

Demolition of the containment dome was completed the week of July 17, 2006.

During the upgrade, workers discovered a gap in the concrete containment dome.

To try next: A containment dome, to funnel the spewing oil into a tanker.

The design is for contamination in such cases to stay in the containment dome.

The Cuban design has additional safety features including a secondary containment dome.

They were working their way toward one of the three huge containment domes that Scotty had identified as fusion plants.

A release inside the containment dome could be managed fairly easily, he said.

A containment dome and field will shield the citizens from the radiation, until he is cool enough to approach.