The Pomegranates That Seeded Life in the Universe

(Image credit: Greg Wyatt)A supernova remnant looks like a pomegranate, carrying the seeds of life in the form of Carbon, Hydrogen, Nitrogen, Oxygen, Nitrogen, Phosphorus and Sulfur (abbreviated as CHNOPS) inside. These elements make up roughly 98% of the mass of most living organisms and serve as the fundamental building blocks for all primary biomolecules: carbohydrates, lipids, proteins, and nucleic acids (DNA).Carbon [C] is the backbone of life. Its unique ability to form four stable covalent bonds allows it to build complex, chain-like, and ring-shaped molecules. Hydrogen (H) is the most abundant element in the universe. It pairs with oxygen to form water (H2O) and creates hydrogen bonds, which give DNA its double-helix structure and stabilize protein shapes. Nitrogen (N) is a critical component of amino acids (the building blocks of proteins) and nitrogenous bases (the core elements of DNA and RNA). Oxygen (O) is an essential building block in water and organic molecules. It is a crucial constituent in cellular respiration, the process by which many organisms generate energy. Phosphorus (P) is a key component of the sugar-phosphate backbone in DNA and RNA. It is also central to ATP (Adenosine Triphosphate), the universal energy currency of cells. Sulfur (S) is found in specific amino acids like cysteine and methionine. Sulfur forms disulfide bonds that fold and lock proteins into their precise, functional three-dimensional shapes.(Image credit: Greg Wyatt)After a star with over 8 times the mass of the Sun consumes its nuclear fuel, it explodes in a supernova and sheds its envelope, which is rich in CHNOPS elements. The resulting dispersal of the heavy elements enriches the interstellar medium with the necessary building blocks of life, which otherwise would have been locked away in the bellies of stars. A supernova remnant is a shell full of clumps, appearing like a red-skinned sphere packed with glowing seeds, like a pomegranate.A Webb telescope image of Cass