Physics and Chemistry in Music

Theoretical Encounter with Alien Consciousness: Could Life Emerge from Different Chemical
Elements?

The theory of life arising from chemical elements different from carbon leads to fascinating
hypotheses about possible forms of life in the universe. Carbon is considered the foundation of
life on Earth due to its unique ability to form four stable covalent bonds with other elements,
allowing for the construction of complex molecules such as proteins, nucleic acids, and
carbohydrates. However, there are also theories about other elements that could serve as the
basis for life:

Silicon – Silicon is chemically the closest element to carbon. It can also form four bonds, but
its compounds are generally less stable and less diverse compared to carbon-based ones.
Nevertheless, theoretically, silicon-based life forms could exist in conditions where
temperatures are significantly higher or lower than those on Earth.

Phosphorus – Phosphorus plays a crucial role in Earth’s life, being part of DNA, RNA, and
ATP. Its biochemical capabilities might offer alternative mechanisms for energy storage and
transfer in extraterrestrial life forms.

Nitrogen – Nitrogen is involved in creating amino acids and proteins in Earth organisms. In
theory, nitrogenous bases could serve as building blocks for alternative biological systems.

Sulfur – Sulfides, through oxidation-reduction reactions, can play a role similar to oxygen
compounds in Earth’s biochemistry, serving as energy mediators. Sulfur is also involved in the
structure of some proteins.

These elements, along with carbon, form the foundation on which biochemical processes could
be built. However, it is challenging to predict exactly which elements and how they might
participate in life processes on other planets without direct data about those conditions and
environments. Perhaps an encounter with extraterrestrial life will reveal entirely new
biochemical pathways that we cannot yet imagine.