A once-barren world transformed into a garden by the celebrated terraformer Gideon Seyetik, who counts it among his greatest works and talks of it constantly in Second Sight.
Blue Horizon is one of the worlds reshaped by Professor Gideon Seyetik, the brilliant and tirelessly self-admiring terraformer who visits Deep Space 9 in Second Sight.
Seyetik holds up the planet as proof of his genius, alongside New Halana, the project during which he met his wife Nidell. He is at the station aboard the USS Prometheus to attempt something greater still, the reignition of the dead star Epsilon 119, and fears that nothing he does afterwards will match his earlier triumphs.
The planet is spoken of rather than seen. It serves as a measure of the reputation that Seyetik finally chooses to crown by flying a shuttlepod into Epsilon 119 himself.