Second Level Subjects
Earth is the third planet from the Sun and the only astronomical object known to harbor life. According to radiometric dating and other sources of evidence, Earth formed over 4.5 billion years ago. Earth's gravity interacts with other objects in space, especially the Sun and the Moon, which is Earth's only natural satellite. Earth orbits around the Sun in 365.26 days, a period known as an Earth year. During this time, Earth rotates about its axis about 366.26 times.
Organizations relating to Earth
Environment Northern Seas Foundation / Est. 1992
World Organization for the Rights of Animals
International Center of Studies for the Protection of Human Rights
Environmental Mediation International / Est. 1978
European Forum for Restorative Justice / Leuven, Belgium / Est. 2000
International Association of Planetology / Est. 1968
International Bureau of the Societies Administering the Rights of Mechanical Recording and Reproduction / Neuilly-sur-Seine, France / Est. 1929
IIED América-Latina / Buenos Aires, Argentina / Est. 1988
International Society for Invertebrate Neurobiology / Tihany, Hungary / Est. 1989
United Cement, Lime and Gypsum Workers International Union / Est. 1939
International Network for Urban Research and Action / Zurich, Switzerland / Est. 1991
UNEP-DTIE Cleaner Production / Est. 1990
Samarbetskommittén inom Norden för Tilförlitlighet of Miljöteknik
Nordic Machine Construction Society
Canadian Ecumenical Justice Initiatives / Toronto ON, Canada / Est. 2001
Institute of World Economics and Politics, Hanoi / Hanoi, Vietnam / Est. 1983
Marie Schlei Association - Assistance for Women in Africa, Asia and Latin America / Hamburg, Germany / Est. 1984
UCSJ - Union of Councils for Jews in the Former Soviet Union / Washington DC, USA / Est. 1970
International Association of Prosecutors / The Hague, Netherlands / Est. 1995
Latin American Information System on Trade and Environment / Montevideo, Uruguay
European Network of Building Research Institutes / Sint-Stevens-Woluwe, Belgium / Est. 1988
Institute for International Studies of Values in Politics, Philadelphia / Est. 1960
Fondation TerrEspoir / Bussigny, Switzerland / Est. 1996
FIAN International / Heidelberg, Germany / Est. 1986
European ECO Forum / Brussels, Belgium / Est. 1993
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