How to evolve Cosmog into Solgaleo and Lunala in Pokemon GO?

Cosmog is again available in Pokemon GO as part of the Solstice Horizons event during the Season of Hidden Gems.

A Cosmic Companion - Season of Light Special Research Part 2

Finally It's Time To Evolve Cosmog into Cosmoem

Pokemon Go: Best Moveset for Cosmog and Its Evolutions

How to get Solgaleo and Lunala in Pokémon Go

How to get Lunala & Solgaleo in pokemon go

How To Get And Evolve Cosmog In Pokemon Go

Pokemon Go A Cosmic Companion Special Research tasks & rewards

Be the star of the Astral Eclipse event! – Pokémon GO

Season of Light: Everything we know about the next Pokémon GO

Pokemon GO: How to Get Solgaleo and Lunala

Pokémon GO - Cosmoem's Evolutions are out of this world! Which one

why cant i evolve my cosmog? : r/pokemongo