protonoida
Protonoida is a term used in the field of astrobiology and exoplanet research to describe a hypothetical type of exoplanet that is rich in hydrogen and helium, similar to the composition of the primordial solar nebula from which the Sun and planets formed. These planets are thought to be in an early stage of their evolution, potentially retaining a significant atmosphere of hydrogen and helium, which is a characteristic of proto-planets in the early solar system.
The term "protonoida" is derived from the Greek words "protos," meaning first or original, and "noida," which
The study of protonoida is important for understanding the early stages of planetary formation and the potential
However, the detection and characterization of protonoida are challenging due to their similarity in composition to