Operation Gaia I was an UNME operation that explored the possibilities of human colonization of far-away solar systems. It was very succesful, and led to Operation Gaia II. It was the follow-up to Operation Prometheus, as the UNME had discovered many planets that were deemed suitable for life and not threatened by star shifts.

The operation consisted of the set-up of test colonies on the planets of Juno II and Halcyon V, the most suitable planets for life, according to the UNELRO. Four colonial bases were set up, two housing 6,000 people, the other two housing 300 people. The aim of the test phase was to research whether the planet could sustain large-scale agriculture, if humans and Moqans could withstand local diseases and hazards, and whether the resources found on the planet were worth the time and money of the UNME.

The project was backed by the USA, Russia, China, Albania, Macedonia, Finland and Uruguay. Approximately half of the people living on the test bases were originally from Albania, as the country was very interested in the possibility of starting colonies in outer space. Other smaller countries, such as Finland, Uruguay and Macedonia expressed this interest as well, but stated that international cooperation would be the only profitable way of starting extrasolar colonies.

The first years were problematic. Agriculture revenues were extremely low, and it was only with the advent of more knowledge about the wildlife of Halcyon V and Juno II that harvest began to normalize. The project was considered a success when the profits began to outnumber the expenditures, which happened five years after the start of the project.

The recommendation concluding Gaia I was that outer space colonization was possible, and should be started with as soon as possible.