TheAlienfranchise is one of the most famous collections of films in the science fiction genre.

Beginning withAlienin 1979, it redefined our cinematic concepts of space exploration.

There have been a total of six films in theAlienfranchise, eight if you count bothAlien vs Predatormovies).

Tom Hardy looking intense as Patrick Walker in Havoc

Ever since Ridley Scott decided to answer the question “Where did the aliens come from?”

Here are 5 things that don’t make sense and 5 fan theories that do in theAlienfranchise.

MAKES NO SENSE: DIFFERENT ALIEN GESTATION PERIODS

TheAlien vs Predatorfranchise convoluted many aspects of bothsci-fiproperties.

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As we know from the colony inAliens,this would have taken weeks.

What was accelerating their growth?

Their entire culture is based on organic life, which they can’t help but create.

Jonathan Bailey looking concerned as Dr. Loomis in Jurassic World Rebirth

Their ships are alive, as are their weapons of mass destruction.

The black goo is the mysterious substance that seeded many creatures in the galaxy, apparently.

It seems to react differently depending on what it comes in contact with.

5 Things In The Alien Franchise That Make No Sense (& 5 Fan Theories That Do) featured image

These are suicide creatures born from a human female - imagine giant Facehuggers.

Iftheyattach themselves to a regular human, then you get a “Deacon Alien.”

This is a prototype of one of the very first xenomorphs and shown to be rather large inPrometheus.

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Surely, there must be more to it than The Company considers them “magnificent specimens.”

Fans have theorized that the beings he wiped out weren’t the original Engineers at all.

There are temples on the planet, indicating the inhabitants worship some sort of deity.

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They hardly seem the beings that kickstarted all life in the universe.

MAKES NO SENSE: HOW DID AN ENGINEER/SPACE JOCKEY GET ON LV-426 IF THEY’RE ALL DEAD?

That ship, Engineer, and thoseeggsare also thousands of years old.

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Why does it have the eggs?

Furthermore, the Space Jockey fromAlienis enormous.

It’s much larger than the Engineers by a good 20 feet.

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In that film, it was clearly a desiccated, rotting corpse with skeletal arms, eye-sockets, etc.

The black goo is arguably at the center of their creation but in a multitude of ways.

Not only that, but the giant tentacled Trilobite is born from a human female.

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Why does it not take on more mammalian features?

When it attacks an engineer, the Chestburster that eventually erupts from him is a fully grown xenomorph.

NEXT:10 Questions The Alien: Covenant Sequel Needs To Answer

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Michael Fassbender as David and the Protomorph in Alien Covenant

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