The Saturn Grimoire card: [spoiler]Out beyond the Reef its rings shine. Whatever was known of it in the Golden Age is long forgotten, but more ancient truth remains: Saturn has dozens of moons, including the mighty Titan, a world larger than Mercury. A Guardian's ship might, in theory, reach Saturn, especially if supported by a larger vessel and good navigational data. But the hazards of the Reef and the Deep Black beyond threaten to devour anyone who makes the attempt[/spoiler] This means we dont absolutely NEED a larger ship for support, but it would certainly cut the risk factor. We're Guardians, not a suicide squad bungie.