Rio scale

The Rio Scale is a method for quantifying the potential impact of a scientific discovery related to the search for extraterrestrial intelligence (SETI). It was developed in 2000 by a group of scientists working in the field of astrobiology and SETI. The scale is designed to provide a standardized way to communicate the significance of announcements regarding potential extraterrestrial life or signals. The Rio Scale ranges from 0 to 10, with higher values indicating a greater significance of the discovery.