planetary accretion造句

• This date also represents the time of initiation of planetary accretion.
• This process would have been associated with the formation of the Martian core, which took place immediately after planetary accretion.
• I don't think you would get such a moon from the same planetary accretion disk, so it would have to be caught.
• The early Earth had much higher heat production, due to the residual heat from planetary accretion, as well as the greater abundance of radioactive elements.
• It is speculated that early atmospheres of Earth, Venus and Mars have experienced periods of hydrodynamic escape due to the heat input from planetary accretion processes.
• Any antimatter in a pre-formation nebula or planetary accretion disc has a comparatively short lifetime, astronomically speaking, before annihilation with the terrene matter that it is mixed with.
• They could either be remnants from the planet's proto-planetary accretion disc that failed to coalesce into moonlets, or conversely have formed when a moon passed within its Roche limit and broke apart.
• Although the initial discovery paper for Fomalhaut b suggested that its optical brightness may be variable due to planetary accretion, later reanalyses of these data fail to find convincing evidence that Fomalhaut b is indeed variable, thus eliminating evidence for planetary accretion and also for a'transient'dust cloud.
• Although the initial discovery paper for Fomalhaut b suggested that its optical brightness may be variable due to planetary accretion, later reanalyses of these data fail to find convincing evidence that Fomalhaut b is indeed variable, thus eliminating evidence for planetary accretion and also for a'transient'dust cloud.
• Other natural energies exploited by human technology originate directly or indirectly with the Sun, including fossil fuel, fissionable elements, while geothermal power taps the Earth's internal heat, which comes from a combination of residual heat from planetary accretion ( about 20 % ) and heat produced through radioactive decay ( 80 % ).