I don't think they presented it well but you can't really do that in a blockbuster movie without it turning into a Physics lecture.

My only issue with the science of the film (and I may have missed something) is that they correctly stated that wormholes that large aren't naturally occurring, so who put it there and why?

They also glossed over how Mat Mc made it home, but whatever. I was enthralled by the film overall and it will get repeated viewings.

Oh yeah, Contact better though.