Chapter 10: “Now We Know” has 2 artifacts to be found. Among them is the second Alien artifact, which seems to be a collectible worth seeking out.
Here to help you in your search is our screenshot guide.
Alien Artifact 02
There will be some fighting with the soldiers and you will enter a snow tunnel with rail tracks in it. Inside the tunnel, before you exit, there is an artifact on the right.
S.C.A.F. Artifact 14
After you get to the Coring Platform and destroy the giant drill you will go outside. Use the cargo lift and you will see a few crates straight ahead. Behind them is the artifact.