Writing my Non-Fiction piece

I started writing my non-fiction piece of writing for my collection, and I'm going to admit to you, its really not that easy. I'm not going to be writing a novel here, more like a 4-5 page piece. Let me explain my theme for my collection real quick. 

My theme for my collection is, Space exploration, and what I want the reader to grasp after reading my collection is that space travel is a great journey that we as humanity will be taking, yet throughout the collection I want to make the reader understand there is a certain way of going about exploring space. If you have ever seen the movie Avatar, by James Cameron, you will understand why approaching the idea of space travel carefully is an integral part of space travel.

Anyways, my intention with my non fiction piece of writing is to show the reader how humans should approach a new planet. I want to point out the fact that we should not go in and invade a new planet if its full of life, I want to write about how humans encounter a planet with life on it, and instead of invading it, we should research the planet and its life forms, and also find a way to communicate with the life form, whilst coming to some sort of agreement.

So given this information, I kinda need some help coming up with plot ideas, any suggestions would be great, minor or major, doesn't matter, I will take them all into consideration.