After you complete The Edge of Fate campaign in Destiny 2, your next order of business (apart from completing side quests, like Dark Academia) is to jump into the Fabled difficulty. The Fabled world tier is at 150 Power, and allows you to get Tier 2 gear consistently.
Once you jump into the Fabled Kepler, you can pick up the Explore Kepler: Fabled quest at the Altar of Relativity. It requires you to collect a total of six Strangelets, including four that you’ve already seen before and two new ones.
