User:Drbogdan/sandbox-DetectingEarthAsExoplanet

There are several methods currently used by astronomers to detect distant exoplanets from Earth. As well, some of these same methods, theoretically at least, may be used to detect the Earth as an exoplanet from distant star systems.

In October 2020, astronomers identified 508 stars (with likely related exoplanetary systems) within 326 light-years (100 parsecs) away that have a favorable positional vantage point of detecting Earth as an exoplanet transiting the Sun. According to the researchers, the transit method is the most popular tool used to detect exoplanets and, additionally, the most common tool to spectroscopically analyze exoplanetary atmospheres. As a result, the study, based on the transit method, will be useful in the search for life on exoplanets beyond our Solar System by the SETI program, Breakthrough Listen Initiative, as well as, upcoming exoplanetary TESS mission searches.