Everyone even the science is focusing about the life on different plantes, Y is really everyone so anxiety about all these things?

Scientist have made so many experiments that the have evolved with nothing but the only preliminary stage exists saying that we are exploring.

I can say three things about Life on earth & different planets
1. We need oxygen to Live but their exists some different body who dosent need this so they can fly & live any where

2. We are readily captured by fire but them they dont are made of fire

3. We nee food to live also water but they dont

Look how simple is it