Once you hit level 30 on a weapon or Warframe, you can hit it with a Forma to give one of its slots a new Polarity symbol, opening up even more Capacity. Warframe guide – tips and tricks for beginners | Rock. You will likely have to defeat it a few times to get the two segments in order to unlock all the planets.

The Nav Segment article on the Warframe wiki has a nice image summarizing the order in which the planets unlock for new Tenno: Some of the planets in the chart split the path, which means that the boss on that planet can give out two segments.

New Tileset: Orokin Moon What we know of the Moon is a mystery, and entering its halls requires the completion of The Second Dream … Update 18: The Second Dream - PC Update Notes - Warframe Forums New Quest: The Second Dream The Second Dream is available to all players who have completed the Quest: Natah.