Perhaps we are looking for intelligent life is not there
The team of astrobiologists revised the generally accepted idea of where life can exist within the solar system. Scientists have suggested that life may well arise inside the planet, even if its surface is not suitable for this, which means that alien life may be much more common than we thought. New areas for life called "underground residential areas."
The habitable zone in the solar system, also called the Goldilocks zone, is a rather narrow band around a star; if the planet is inside this zone, then liquid water and a stable atmosphere can occur on it. Of course, we are talking primarily about microbes (although, quite possibly, not only about them): for example, extremophiles on Earth have proved that life can arise under the most impossible conditions. In addition, in the interior of the planet the temperature is often higher than on the surface, so that liquid water, and therefore life, may appear there.
If we consider that life can exist at a depth of 5.3 km below the surface, then the habitable zone around the star is tripled. If we assume that life can occur at a depth of 10 km below the surface of the planet (theoretically this is possible), then Jupiter enters the habitable zone of the Solar System, which has the satellites Europe and Ganymede, on which scientists believe there are underground oceans .
It also means that Venus, despite its molten surface, may also be suitable for life. The same applies to dwarf planets and asteroids - the larger the celestial body, the more heat its core produces.