Why don't people belive in life everywhere?

In the Bhagavad-Gita Krsna says there is life everywhere in the universe, on every planet and moon. There are advanced civilizations, much more advanced than us on almost every planet. On the moon there is an advanced civilization that lives for 10,000 years. The Sun also has many advanced civilizations. God did not give humans the abiltiy to perceive these civilizations on the moon or the sun. Human beings don’t have the suitable senses. Think about it though, God made different places for different types of life to exist. He made water for fish, air for birds etc. It is foolish to think that life would not exist on any other place in the universe. Just becasue all life on Earh might need water, food, oxygen, air or something like that, it doesn’t mean that there can’t be life anywhere else that doesn’t meet this requirement. Why do people always say that other places such as the Moon, Mars, Venus, Mercury, Sun, Jupiter, Saturn, Uranus, Neptune, Pluto, Sedna, Eris, etc. can’t support life? It probably can’t support earth-like life but every planet, star and moon has life, and advanced life too. We can’t live comfortable on any other planet because, God made the Earth for us. He made Mars for life suitable for its atmosphere, Venus for life suitable for its atmosphere, the moon for life suitable for its atmosphere, etc. We can’t live submerged underwater since there is no oxygen in water, but we don’t assume that there is no life in our oceans. Why do scientists make these bold statements about all of these places have no life? It doesn’t have to be carbon based life!