Why Only Humanoid Aliens…

…’Star Trek’ everything (TV-Movies) only has aliens that are in humanoid shape, makes no sense to me. Scientifically we cannot think, if we start, eventually, space exploration that all the life we come into contact with will come in humanoid shape. Why the BLANK did not ‘Star Trek’ everything creators not think of this? The first three TV series figured this out, but since then everything I have seen has only Humanoid shape aliens.

*- I am not saying we will ever be able to explore space, it has already scientifically proven that space particles can be blocked from going right through astronauts bodies & long term will cause serious damage.

The scientific American published article said, the science proved that the dangerous effect will be on their brains & causing effects like Alzheimer.