https://www.gamespot.com/articles/destiny-2-forsaken-how-and-where-to-do-the-ascenda/1100-6461852/

The most recent weekly reset for Destiny 2 has brought more than just the return of Iron Banner and a new update. For those who have reached the Dreaming City, another Ascendant Challenge is now available. Here's where to find it and how to complete it.