Eligius III

The Eligius III is a spaceship owned by the Eligius Corporation which originated from Earth. Its mission, which started before the First Apocalypse, was to tap for oil on a far away Unnamed Planet, since Earth's resources had been virtually depleted.

Because their destination planet had two suns, all its crew and inhabitants were inoculated with Nightblood so they could better withstand the increased levels of radiation.

The current status of the ship and its crew is as of yet unknown.

Season Four
In The Tinder Box, Jackson indirectly refers to Eligius III by telling Abby that Becca first developed the Nightblood for the Eligius Mining Company to protect against solar radiation for long space missions.

Season Five
In Sleeping Giants, Miles Shaw mentions that there's a ship called Eligius III which has Nightbloods.

In Pandora's Box, Raven shows Murphy a list of four Eligius-class ships.

In Damocles (Part 2), Monty reveals in his video message that Eligius III was sent to a new planet to tap for oil, since Earth's oil supplies had run out, which is the same planet the Eligius IV is now orbiting.