Results 261 to 270 of about 12,136 (308)
Some of the next articles are maybe not open access.
Provenance of the terrestrial planets
Geochimica et Cosmochimica Acta, 1994Earlier work on the simultaneous accumulation of the asteroid belt and the terrestrial planets is extended to investigate the relative contribution to the final planets made by material from different heliocentric distances. As before, stochastic variations intrinsic to the accumulation processes lead to a variety of final planetary configurations, but
openaire +2 more sources
Formation of the terrestrial planets
Earth, Moon, and Planets, 1994The early phases of formation in the inner solar system were dominated by collisions and short-range dynamical interactions among planetesimals. But the later phases, which account for most of the differences among planets, are unsure because the dynamics are more subtle. Jupiter’s influence became more important, leading to drastic clearing out of the
openaire +1 more source
Structure of the Terrestrial Planets
Nature, 1973Recent reviews (cf. Runcorn, 1968; or Cook, 1972, 1975) on the structure of the planets omit reference to the phase-change hypothesis for the nature of the terrestrial core, despite that numerous prior predictions of the theory based on this hypothesis have subsequently been borne out as correct.
openaire +1 more source
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 ...
openaire +1 more source
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 ...
openaire +1 more source
Making More Terrestrial Planets
Icarus, 2001The results of 16 new 3D N-body simulations of the final stage of the formation of the terrestrial planets are presented. These Nbody integrations begin with 150‐160 lunar-to-Mars size planetary embryos, with semi-major axes 0.3< a < 2.0 AU, and include perturbations from Jupiter and Saturn.
openaire +1 more source
The Strangest Terrestrial Planet
Science, 2012NASA's MESSENGER mission previously revealed that Mercury has a volcanic crust; now it finds evidence for an inner “anticrust.”
openaire +1 more source
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
openaire +1 more source
Life and death in the soil microbiome: how ecological processes influence biogeochemistry
Nature Reviews Microbiology, 2022Noah W Sokol +2 more
exaly
A planet within the debris disk around the pre-main-sequence star AU Microscopii
Nature, 2020Peter Plavchan +2 more
exaly