The Planetary Society is an American internationally active, non-governmental, nonprofit foundation. It is involved in research, public outreach, and political advocacy for engineering projects related to astronomy, planetary science, and space exploration. It was founded in 1980 by Carl Sagan, Bruce Murray, and Louis Friedman, and has about 60,000 members from more than 100 countries around the world. More information...
In June 2020 the website planetary.org was on the 3,413th place in the ranking of the most reliable and popular sources in multilingual Wikipedia from readers' point of view (PR-score). If we consider only frequency of appearance of this source in references of Wikipedia articles (F-score), this website was on the 2,519th place in June 2020. From Wikipedians' point of view, "planetary.org" is the 3,701st most reliable source in different language versions of Wikipedia (AR-score).
The website is placed before historicengland.org.uk and after webexhibits.org in multilingual PR ranking of the most reliable sources in Wikipedia.
BestRef shows popularity and reliability scores for sources in references of Wikipedia articles in different languages. Data extraction based on complex method using Wikimedia dumps. To find the most popular and reliable sources we used information about over 200 million references of Wikipedia articles. More details...