Why humanity has not yet encountered extraterrestrial life: scientists" opinion## Translated content from Russian to English as requested, maintaining the original formatting and providing an accurate translation of the title.

The Mystery of Cosmic Silence: Why Are We Still Alone in the Universe?

The question of extraterrestrial life continues to stir scientists' minds and remains one of the greatest scientific mysteries of our time. Despite countless billions of planets scattered throughout the Universe, humanity has not yet received a single official confirmation of contact with representatives of other worlds.

The scientific community puts forward several intriguing hypotheses explaining this cosmic silence:

Civilization filters. According to the concept of the "great filter," intelligent life forms may self-destruct before reaching a cosmic level of development. Perhaps humanity has become a pioneer that managed to overcome this fatal barrier of evolution.

Different time scales. Alien civilizations could have flourished millions of years ago or will only appear millions of years in the future—our civilization clocks simply did not coincide in the time continuum.

Lack of technology. Modern Earth technology may be too primitive to detect signals or life forms existing in a completely different biochemical form, inaccessible to our understanding.

They are hiding. Some bold theories suggest that advanced extraterrestrial civilizations deliberately avoid contact with us—guided by ethical principles or strategic considerations.

While science tirelessly continues its search, this fundamental question remains open. However, each new space telescope, each research probe, and each analyzed signal from the depths of space brings humanity closer to solving one of the greatest mysteries of the universe.