These constraints include: (1) the orbits, in particular the small eccentricities, and (2) the masses of the terrestrial planets – Mars' relatively small mass in particular has not been adequately reproduced in
Of the terrestrial planets, Earth and probably Mercury possess substantial intrinsic magnetic fields generated by core dynamos, while Venus and Mars apparently lack such fields. Thermal histories are calculated for these planets and are found to admit several possible present states, including those whic...
Terrestrial and sub-Neptune planets are expected to form in the inner (less than 10 au) regions of protoplanetary disks1. Water plays a key role in their formation2,3,4, although it is yet unclear whether water molecules are formed in situ or transported from the outer disk5,6. So fa...
The four innermost planets of our solar system (Mercury, Venus, Earth and Mars) are called the “terrestrial” planets. The name comes from the word “telluric” derived from the Latin words “terra” and “tellus”, used to refer to Earth. They are made mostly of silicate rocks and ...
例5. They may have been a source of part of the atmosphere of the terrestrial planets, and they are believed to have been the planetesimal-like building blocks for some of the outer planets and their satellites. 它们可能一直是地球行星的一部分大气的来源。它们还被认为是构成外部行星以及其卫星的...
the terrestrial planets composition in our Solar System (Sect.5). Two methods are currently within the reach of past, planned and future exoplanet missions. The determination of the bulk composition of Ultra-short-period (USP) planets, in the range of Earth or super-Earth masses orbiting low...
Terrestrial Planets Terrestrial planets include the four closest planets to the Sun located between the Sun and the asteroid belt; Mercury, Venus, Earth, and Mars. Astronomers who use the geophysical definition of a planet would also include the Moon as a terrestrial planet. ...
site for future missions aiming to unravel the first tens of millions of years of the history of Mars and, by extension, of all terrestrial planets, including the Earth. Similar content being viewed by others Orthopyroxene-dominated upper mantle melting built the early crust of the Moon...
Variations in the abundances of moderately volatile elements (MVE) are one of the most fundamental geochemical differences between the terrestrial planets. Whether these variations are the consequence of nebular processes, planetary volatilization, differentiation or late accretion is still unresolved. The ...
The earth is fifth in size and mass among the large planets, but it is the largest planet of the so-called terrestrial planets, which include Mercury, Venus, the earth, and Mars. The most important feature distinguishing the earth from the other planets of the solar system is the existence...