Space movie with triangle?

Hello!!

I’m looking for a movie that I remember very little about.
Here’s what I remember:

There are two people, a man and a woman, who live on a desolate planet (it’s very blue/grey) in a very fancy hi-tech kind of outpost. They have to do perimeter checks in little spaceship every so often of the surrounding area, but are only allowed to go so far. Something happens, and the man(?) makes the decision to go past their perimeter and eventually discovers some kind of floating pyramid, and it has something like a lot of clones of him and the woman in it??

That last part is a little iffy. I could totally be intertwining 2 different movies. But if anyone thinks this sounds familiar, I’d love to hear it!! Thank you!