Hi there ^^ Here's the list of all 9 artifacts. If there if more than 9 i dont know but ive found 9 (9 avaliable slots each mission).

Not in order:

1. Kinetic Intensifier
Effect: Damage Increase 12%

Effected Ships/Structures: Everything that can fire

2. Resilient Metaloids
Effect: Hull Repair Rate Increase 15%

Effected Ships/Structures: Everything

3. Manifest Domination
Effect: Culture Spread Rate Increase 25%
Culture Resist Increase 10%

Effected Ships/Structures: The culture building

4. Jump Drive Relic
Effect: Between Star Phase Jump Speed Increase 50%

Effected Ships/Structures: Every ship

5. Power Core Relic
Effect: Antimatter Regeneration 10%

Effected Ships/Structure: Everything with an antimatter pool

6. Phase Accelerator
Effect: In-System Phase Jump Speed Increase 50%

Effected Ships/Structure: Every ship

7. Data Archive
Effect: Research Cost Decreased 25%

8. Jump Field Generator
Effect: Phase Jump Antimatter Cost Decreased 30%

Effected Ships/Structures: Every ship with antimatter pool

9. Relativistic Factories
Effect: Ship Build Rate Increased 25%