Badges are a reward given to players who’ve demonstrated their unique skill and understanding of the game and managed to do something extraordinary. However, badges are considered not only as cosmetics, but also a part of bigger elements of the game. Most of the time Destiny 2 badges are a necessary step towards a bigger goal, like a title or a Triumph seal, and they always drop a good share of rewards upon completion.
Destiny 2 Lunar Rover badge
Destiny 2 Veteran Disciple
Europan Collector
Forged in Fire
Sacred Duty