Planet Earth has an interesting history, there are many vagaries in its existence. The major question must be are we alone out there or are there other sentient beings.

 

There are millions of star systems in our galaxy which probably are the home worlds of many different species.

 

Our belief must be that life exists in many different forms spread across the galaxy. Strange and exotic creatures harbouring immense powers may exist in the far-flung star systems across our galaxy. Then the problem will be when a mile-long spaceship descends on planet Earth and all our puny weapons are useless against this alien intruder.

 

The startling fact is that an alien invasion is a distinct possibility. These tales of the inhabitants of these far-flung planets, illustrate that planet Earth is a tiny speck on the vast spectrum of the universe.