Sentences with Once In A Blue Moon

After years of research, scientists observe the elusive species once in a blue moon in its natural habitat.

The software company releases major updates only once in a blue moon to ensure stability.

The artist unveils a masterpiece once in a blue moon, leaving patrons eagerly anticipating the next exhibition.

Once in a blue moon, the reclusive author would emerge from seclusion to attend literary events.

Astronomers eagerly await the rare celestial events that happen only once in a blue moon.

The old sailor recounted tales of encountering mystical sea creatures once in a blue moon during his voyages.

The archaeologists uncovered an ancient artifact buried deep within the ruins, a discovery that occurs once in a blue moon.