Ontology highlight
ABSTRACT:
SUBMITTER: Jagadeesh MK
PROVIDER: S-EPMC7175269 | biostudies-literature | 2020 Jan
REPOSITORIES: biostudies-literature
Life (Basel, Switzerland) 20200126 2
The search for different life forms elsewhere in the universe is a fascinating area of research in astrophysics and astrobiology. Currently, according to the NASA Exoplanet Archive database, 3876 exoplanets have been discovered. The Earth Similarity Index (ESI) is defined as the geometric mean of radius, density, escape velocity, and surface temperature and ranges from 0 (dissimilar to Earth) to 1 (similar to Earth). The ESI was created to index exoplanets on the basis of their similarity to Ear ...[more]