Another important thing for life is water. A large part of each of our cells is occupied by water. It is believed that life originated in water. Above all, we are so helpless without water that a proverb has been created about it. Another name for water is life.

Water for life

Some scientists have not been able to figure out its alternative even today. It is far from being able to find out in reality! According to them, life could not have evolved on a harsh, dry planet without water. However, life may develop on a planet covered in ice! This is because water can be liquid under the frozen ice cover. Maybe, life was born in that water. But if they can't break through the ice cover, it will be very difficult for them to communicate with people!

All these are just possibilities. But until something is discovered, it is only a possibility. Only after being discovered does it become pure reality. I said this at the beginning. We still don't know much of what nature has hidden behind it.

The history of the universe is about 14 billion years. And the entire revolution of our knowledge and science has happened in the last two hundred years. Within these two hundred years, we have discovered that we live on a tiny dot-like planet on one side of the Milky Way. Discovered that there are hundreds of thousands of other galaxy clusters outside the Milky Way. There are strange things like black holes, hidden objects, and even antimatter in our universe. And in this Milky Way galaxy there are about 60 billion habitable planets!