how to open relics?

[Cryptic]

not sure on this

[Pakaku]

Top-right corner of the navigation screen has a drop-down menu, and one of the menu tabs lists Void Fissures you can run

If you don't like the specific missions listed, you can wait until they expire and new ones appear

[peppermint hollows]

Go to your navigation screen, in the bar on the top right click on the icon that looks kind of like a flame. Select one of the missions there - there are different relic types corresponding to a specific fissure "era," Lith, Meso, Neo, and Axi. You can only take Lith relics to Lith fissures, for example. Select whichever mission has the fissure type you want and choose the relic you want to bring. Collect 10 reactant during the mission by killing the corrupted enemies and your relic will be open at the end of the mission.

If you play with a squad, you can also choose the reward from the other squad member's relic (assuming they also brought a relic and obtained the 10 reactant needed) or keep the reward from yours. You can only choose 1 reward per rotation. In endless missions, you can stay and open as many relics as you want, 1 per rotation (every 5 waves in defense and every 5 minutes in survival).

[GunsForBucks]

You must complete the set up questish thing to put the segment in the relic station.

If you can interact with the relic station already then you check navigation for relic missions if any are on a place you have opened up in the star chart.

[Cryptic]

Thanks guys!

[C.C. 折オリ枝 の 夫]

Go to Navigation, fissure tab and chose from there