In the following article we will analyze Outline of Earth in depth, a topic that has generated great interest and debate in recent years. Since its emergence, Outline of Earth has captured the attention of experts and fans alike, generating a wide range of opinions and theories. Throughout this article, we will explore the different facets of Outline of Earth, from its impact on today's society to its relevance in the historical context. Additionally, we will examine the future implications of Outline of Earth and the role it could play in our daily lives. This analysis seeks to offer a comprehensive perspective on Outline of Earth, with the aim of enriching knowledge and understanding of this very relevant topic.
Overview of and topical guide to Earth
The following outline is provided as an overview of and topical guide to the planet Earth:
Earth – third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only astronomical object known to harbor life.
Classification of Earth
Location of Earth
Earth's location in the Universe
- Universe – all of time and space and its contents.
- Observable universe – spherical region of the Universe comprising all matter that may be observed from Earth at the present time, because light and other signals from these objects have had time to reach Earth since the beginning of the cosmological expansion.
- Laniakea Supercluster – galaxy supercluster that is home to the Milky Way and approximately 100,000 other nearby galaxies. Includes the prior defined local supercluster, the Virgo Supercluster, as an appendage.
- Virgo Supercluster – one of the approximately 10 million superclusters in the observable universe. It spans 33 megaparsecs (110 million light-years), and contains at least 100 galaxy groups and clusters, including the Local Group.
- Local Group – specific galaxy group that includes the Milky Way and at least 53 other galaxies, most of them dwarf galaxies.
- Milky Way Galaxy – a specific barred spiral galaxy
- Orion Arm – a spiral arm of the Milky Way
- Solar System – the Sun and the objects that orbit it, including eight planets, the third planet closest to the Sun being Earth
Movement of the Earth
Features of Earth
This sphere represents all water on Earth, wherever it is and in whatever form within the water cycle.
- Water, by relative altitude
Atmospheric water
Surface water
Water, by salt content
Astronomical events on Earth
Natural satellites of Earth
History of Earth
History of Earth
Future of Earth
Future of Earth
See also
References
External links