Many of us surely know that movies and TV shows don’t always bend towards realism when it comes to depicting certain scientific laws or natural phenomena. That notion is particularly true when it comes to massive blockbuster movies. (I’m looking at you, "Fast & Furious" series.) The "Guardians of the Galaxy" series – a trio of comic book-inspired space operas – has also taken liberties. The latest (and potentially final) installment, Vol. 3, has several sequences that seemingly push boundaries when it comes to authenticity. One such scene shows Star-Lord nearly dying, and a retired astronaut weighed in on the feasibility of that moment. In doing so, he even used an analogy involving blood and fizzing coke.

During the bombastic third act of "Guardians of the Galaxy Vol. 3," the titular team staged a daring assault on the High Evolutionary’s Arête Laboratories. It’s there that they save the genetically enhanced humanoid children being held captive there as well as a swath of animals intended to be test subjects. They’re ultimately successful, thanks to some help from their friends at Knowhere, which becomes connected to Arête by Cosmo the canine cosmonaut’s telekinetic bridge. Chris Pratt’s Peter Quill, however, leaves the latter location too late and nearly dies while jumping away. In the end, he was saved by Adam Warlock.