Advanced Worlds:    Betha    Golos    Zenno    War Games Planet    Piri

The Alphans encountered several advanced worlds, with science far ahead of theirs. The Bethans had futuristic cities and a fertile world but expended all their energies in an endless war against their sister planet Delta. In direct contrast were the people of Golos, also known as the peace planet; the Golosians couldn't kill a group of psychotic murderers so instead exiled them to a far away planet. The people of Zenno were so far in advance of the Alphans that they considered them a 'missing link', to be studied. The aliens of the War Games Planet had wonderful technology and were able to use the power of the mind in incredible ways, but made it quite clear to the Alphans that they were not welcome. The Pirians created technology so powerful that it caused their destruction.

Barren or Hostile Worlds:    Ultima Thule    Planet D    Tora    All That Glisters Planet

Barren or hostile worlds were also discovered. Ultima Thule was a world of intense cold and raging blizzards that the Alphans only investigated due to a radio signal. Planet D had its own flora, but it's thick yellow mist was toxic to humans. On opposite ends of the spectrum were Tora, a primitive planet just beginning to evolve, which had no life or atmosphere yet, and the All That Glisters Planet, which was once full of life, but is now on the verge of death with only one life form remaining.

Earthlike Worlds:    Arkadia    Ellna    Terra Nova    New Earth

Some of the planets the Moon travelled by were very Earthlike and raised the Alphans' hopes about finding a world to settle. Arkadia was so Earthlike that it even had the same species of trees as Earth; however it was a barren world that could not be brought back to fertility soon enough to support the Alphans. Ellna was very like Earth, but its entire population had been killed off by some sort of neurotoxin. Terra Nova was a lush, tropical paradise, but the Alphans were warned away. Magus offered the people of Alpha a New Earth that he created, but the offer came with a catch.

Alternate Earths:    Future Earth    Other Earth

Finally, despite being ripped from Earth orbit, the Moon did again encounter Earth albeit Earth of the future and Earth of an alternate reality. Several years after leaving Earth orbit the Alphans were contacted by people from future Earth. Due to the Moon's space travel what passed for a few years on Alpha was almost 150 years for Earth, as their year was now 2120. The Alphans also encountered an other Earth in an alternate reality, complete with alternate Alphans. This Earth had been devastated by a shift in its axis, leaving most of the planet uninhabitable.