Cosmoem is a strange little Pokémon. Known as the Protostar Pokémon, it evolves from Cosmog, better known as Nebby, from Pokémon Sun and Moon. It’s a powerful legendary capable of evolving into two other legendaries: Solgaleo and Lunala, the two-poster Pokémon in Sun and Moon.
In the main series games, Cosmoem evolves into Solgaleo if leveled up in Sun and Lunala if leveled up in Moon. In Pokémon Go, evolutions work a little differently. Since there aren’t two versions of the game, you’ll have to pay attention to the time of day you evolve Cosmoem and use your accrued Cosmog Candies to choose your favorite form.
Sadly, unless a new event comes to Pokémon Go, you’ll only be able to get one Cosmog at the moment. To get Cosmog, you’ll need to complete the Special Research called ‘A Cosmic Companion.’ This means you’ll only be able to choose Solgaleo or Lunala. Of course, you’ll always be able to trade with a friend or cross your fingers for future Cosmog events!
Here’s everything you need to know about which Cosmoem evolution is better in Pokémon Go.
How to evolve Cosmoem in into Solgaleo or Lunala

To evolve Cosmoem in Pokemon Go, you need to spend 100 candies. However, for Solgaleo, you have to evolve Cosmoem during the day. If you want Lunala, you have to evolve Cosmoem during the night.
Solgaleo traits in Pokemon Go

In Pokémon Go, Solgaleo is a Psychic and Steel-type Pokemon. Solgaleo’s base stamina rate is 264, the base attack rate is 255, and the base defense rate is 191, making for a tanky, offensive powerhouse of a Pokemon.
As you might expect, Solgaleo learns more Fire-type moves thanks to its association with the sun. Solgaleo can learn the fast attacks Fire Spin and Zen Headbutt, and the charged attacks Flamethrower, Iron Head, Psychic Fangs, and Solar Beam.
Fairy can be a pretty tricky type to fight, and Solgaleo’s Steel typing can help a lot with troublesome Fairies.
With its unique Psychic/Steel typing, Solgaleo can act a little bit like a wild card in battles. That Steel type makes it completely immune to Poison and offers resistances to Normal, Grass, Ice, Flying, Psychic, Bug, Rock, Dragon, Steel, and Fairy-type attacks. Tragically, as a Steel type, it’s weak to Fire, which makes it a bit ironic that it’s supposed to be the “Sunne Pokémon.”
Lunala traits in Pokemon Go
Lunala is a Psychic and Ghost-type Pokémon. Sharing a bit more similarity to Solgaleo this time, Lunala shares the exact stats of a base stamina of 264, a base attack of 255, and a base defense of 191.
Lunala favors Psychic, Ghost, and Fairy-type attacks related to the moon. Lunala can learn the fast attacks Air Slash and Confusion and the charged attacks Future Sight, Moonblast, Psychic, and Shadow Ball.
Lunala’s limited weaknesses and strong base attack make it a great choice for completing raids.
Thanks to the fact that it’s only weak to two types of attacks, Ghost and Dark, Lunala is a really strong choice in a lot of fights. It’s completely immune to Normal and Fighting-type attacks, and it’s resistant to Poison. The big catch, of course, is the fact that Lunala is 4x as weak to Ghost and Dark-type moves. That’s not great.
Which Cosmoem evolution is better?
If you want a sturdier Pokémon that can dish out powerful attacks, go for Lunala. If you’d rather have total immunity to Poison and various move types, Solgaleo is a better choice.
Yet, if you’re looking for more diversity with moves, maybe go for Solgaleo. Its attacks encompass four types: Fire, Psychic, Steel, and Grass. As a Steel type, it has a quadruple resistance to Poison-type moves, so if such ‘mons often plague you, it’s an obvious choice.
Lunala is the better choice if you’re looking for a Pokémon that has fewer type weaknesses and a strong Raid Pokémon. It’s only weak to two types, Ghost and Dark, though both of them are quadruple weaknesses, so you’ll need to tread carefully. As a Ghost-type, Lunala has complete immunity to Normal and Fighting-type moves. Similarly to Solgaleo, it also opposes Poison-type moves, though not quite as strong. Its moves are less diverse in type, but because more of them match its type combination, it will more frequently receive STAB. Cosmoem will evolve into Lunala if you use 100 Cosmog Candies at night.
Why you should choose Solgaleo
- Immunity to poison
- Fire, Psychic, Steel, and Grass-type moves
Why you should choose Lunala
- High attack prowess
- Only weak to Ghost and Dark-type moves
- Immunity to Normal and Fighting-type moves
- Frequently receives STAB