Still: YouTube

Neil deGrasse Tyson, aka that one guy in astronomy class who’s always going on about how no movies should have sound in space, is here to tell us that Guardians of the Galaxy Vol. 2 shouldn’t have sound in space. Yeah we know, Dad, we watched Firefly too.

Tyson appeared on The Late Show with Stephen Colbert to “review” some of the upcoming summer blockbusters, including Alien: Covenant and the second Guardians flick, the latter of which is currently in theaters. He had some choice words about Alien: Covenant, mainly how it wouldn’t make sense to send humans to a planet before robots. Though, to be fair, we didn’t care for it much either. Check out the video below, especially the part where Tyson gushes about Dwayne Johnson’s beefy arms.