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2014
The terrestrial planets (Mercury, Venus, Earth, and Mars), also called the inner planets, occupy the region within 1.5 AU from the Sun. They exhibit manifold properties of their surface landforms, geology, interiors, and atmospheric features. The Earth possesses a unique nature; the natural conditions of our neighbors Venus and Mars are completely ...
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The terrestrial planets (Mercury, Venus, Earth, and Mars), also called the inner planets, occupy the region within 1.5 AU from the Sun. They exhibit manifold properties of their surface landforms, geology, interiors, and atmospheric features. The Earth possesses a unique nature; the natural conditions of our neighbors Venus and Mars are completely ...
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1995
Mercury, the innermost planet, had been known since ancient times and its phases had been seen with early telescopes. Unfortunately, Mercury is a difficult object to observe, as it is always too low down in the sky when the Sun is below the horizon, and its image is consequently disturbed by the Earth’s atmosphere. As a result, it had proved impossible
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Mercury, the innermost planet, had been known since ancient times and its phases had been seen with early telescopes. Unfortunately, Mercury is a difficult object to observe, as it is always too low down in the sky when the Sun is below the horizon, and its image is consequently disturbed by the Earth’s atmosphere. As a result, it had proved impossible
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1979
The terrestrial planets possess markedly different intrinsic densities (Table 6.3), implying the existence of corresponding differences in chemical composition. Possible reasons for the compositional differences which were considered in Section 6.5, involved (a) fractionation of metallic iron from silicates in the nebula prior to accretion, and/or (b ...
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The terrestrial planets possess markedly different intrinsic densities (Table 6.3), implying the existence of corresponding differences in chemical composition. Possible reasons for the compositional differences which were considered in Section 6.5, involved (a) fractionation of metallic iron from silicates in the nebula prior to accretion, and/or (b ...
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40Ar retention in the terrestrial planets
Nature, 2007The solid Earth is widely believed to have lost its original gases through a combination of early catastrophic release and regulated output over geologic time. In principle, the abundance of 40Ar in the atmosphere represents the time-integrated loss of gases from the interior, thought to occur through partial melting in the mantle followed by melt ...
Daniele J. Cherniak +2 more
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Ionospheres of the terrestrial planets
Reviews of Geophysics, 1980The theory and observations relating to the ionospheres of the terrestrial planets Venus, the earth, and Mars are reviewed. Emphasis is placed on comparing the basic differences and similarities between the planetary ionospheres. The review covers the plasma and electric‐magnetic field environments that surround the planets, the theory leading to the ...
Andrew F. Nagy, Robert W. Schunk
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History of the terrestrial planets
Geologische Rundschau, 1977A time table showing the history of the terrestrial planets is submitted in this paper. The planetary evolution is presented within the framework of global tectonics, whereby a distinction is made between exogenous and endogenous processes. Beginning with the age of 4.5 × 109 years and extending to the age of 3.0 × 109 years all terrestrial planets are
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Volcanism on the Terrestrial Planets
Journal of Geological Education, 1994With the possible exception of Mercury, the surfaces of the terrestrial planets have been extensively modified by volcanism. As a result of plate tectonism, Earth has the greatest variety of volcanic settings. On our planet, volcanism occurs in association with rifting, subduction zones, and hotspots.
Randy R. Patrick, Robert Crombie Howe
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The Terrestrial Planets and Their Satellites
2004The four planets closest to the Sun; Mercury, Venus, Earth, and Mars (and to which one can add the Moon), have many similarities that justify their being considered together. These planets are sometimes called the inner planets, because of their proximity to the Sun, or terrestrial planets, with the Earth serving as a convenient reference.
Thérèse Encrenaz +5 more
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AIP Conference Proceedings, 2004
Some of the astronomical and cosmochemical constraints on the formation of the Sun’s terrestrial planets are reviewed, and the planetesimal theory of planetary accretion is described. Several difficulties remain for this model, especially in its earliest stage, but substantial progress has been made in recent years.
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Some of the astronomical and cosmochemical constraints on the formation of the Sun’s terrestrial planets are reviewed, and the planetesimal theory of planetary accretion is described. Several difficulties remain for this model, especially in its earliest stage, but substantial progress has been made in recent years.
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Climates of terrestrial planets
2016Suppose we detect a planet half the size of Venus orbiting a 5 billion year old M-type star at 0.5 AU. To our surprise the planet has detectable radiation belts. How might the planet's climate and surface habitability differ from that of Venus? The prospect that the scientific community might be faced in the next decade or two with questions like the
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