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Earth orbits the Sun, making Earth the third-closest planet to the Sun and part of the inner Solar System. Earth's average orbital distance is about 150 million km (93 million mi), which is the basis for the astronomical unit (AU) and is equal to roughly 8.3 light minutes or 380 times Earth's distance to the Moon.
Earth analog – Planet with environment similar to Earth's; Geologic time scale – System that relates geologic strata to time; Geophysics – Physics of the Earth and its vicinity; History of Earth – Overview of Earth's history; Terrestrial planet – Planet that is composed primarily of silicate rocks or metals
Earth (0.98–1.02 AU) [D 6] is the only place in the universe where life and surface liquid water are known to exist. [102] Earth's atmosphere contains 78% nitrogen and 21% oxygen, which is the result of the presence of life. [103] [104] The planet has a complex climate and weather system, with conditions differing drastically between climate ...
Planetary atmospheres are affected by the varying insolation or internal energy, leading to the formation of dynamic weather systems such as hurricanes (on Earth), planet-wide dust storms (on Mars), a greater-than-Earth-sized anticyclone on Jupiter (called the Great Red Spot), and holes in the atmosphere (on Neptune). [69]
Tellus is a Latin word meaning "Earth" and may refer to: An alternative name for the planet Earth; Tellus of Athens, a citizen of ancient Athens who was thought to be the happiest of men; Tellus Mater or Terra Mater, the ancient Roman earth mother goddess; Tellus Science Museum in Cartersville, Georgia
Earth may have had a ring made up of a broken asteroid over 400 million years ago, a study finds. The Saturn-like feature could explain a climate shift at the time.
Another possibly terrestrial planet, HD 85512 b, was discovered in 2011; it has at least 3.6 times the mass of Earth. [19] The radius and composition of all these planets are unknown. Sizes of Kepler planet candidates based on 2,740 candidates orbiting 2,036 stars as of 4 November 2013
A planet is any object in orbit around the Sun with a diameter greater than 2,000 km. (Eleven votes in favor) A planet is any object in orbit around the Sun whose shape is stable due to its own gravity. (Eight votes in favor) A planet is any object in orbit around the Sun that is dominant in its immediate neighbourhood. (Six votes in favor) [50 ...