planetary core造句

• The planetary core of the IIABs was rich in sulfur and phosphorus.
• In the formation of terrestrial planets or planetary cores, several stages can be considered.
• This is the planetary core accretion model of planet formation.
• It perhaps can exist in dense planetary cores.
• The high-pressure phases of iron are important as models for the solid parts of planetary cores.
• Iron meteorites originate from planetary cores of planetesimals.
• Since the core still exists, the outer envelope must have originally accreted onto a previously existing planetary core.
• ""'Psyche " "'is an orbiter mission that will explore the origin of planetary cores by studying the metallic asteroid 16 Psyche.
• Earth reels around the sun, and we're sandwiched between the cold of deep space and the 7, 000-degree heat of the planetary core.
• The "'planetary core "'consists of the innermost layer ( s ) of a planet; which may be composed of solid and liquid layers.
• Dalek X reveals to the Doctor that once the planetary core has been extracted, the Daleks will locate the Threshold using a Large Chronon Collider.
• The core may include solid and liquid regions, and some planetary cores generate their own magnetic field, which can protect their atmospheres from solar wind stripping.
• The term was coined by Dr . Paul Palmer of Brigham Young University in 1986 in an investigation of the possible existence of fusion in a planetary core.
• Using his space mining vessel, the " Narada ", Nero created a singularity in Vulcan's planetary core as part of his quest to avenge the destruction of Romulus.
• The 2.8766-day AU and is notable first as a transiting planet, and second for a small measured radius ( relative to mass and incoming heat ) that suggests an exceptionally large planetary core.
• This is the approximate basic reason why iron and nickel are very common metals in planetary cores, since they are produced profusely as end products in supernovae and in the final stages of silicon burning in stars.
• These meteorites provide a baseline for determining the age of planetary cores because they come from planetary bodies that never formed a core, said Thorsten Kleine of the University of Munster in Germany, who led the German team.
• Where Fg is the gravitational focusing term which is dependent on the ratio of velocity of the planetesimal to escape velocity from the accreting planetary core and also the inclinations and eccentricities of the particles in the protoplanetary disk.
• It has encountered a world in the process of being destroyed by the Shadow death cloud; thousands of extreme-yield thermonuclear missiles burrow into the planet and detonate in unison, destroying the planetary core and tearing the planet apart from the inside out.
• Further out the surface of the planetary core ( which would been rocky or metally ) would be cold enough for the captured hydrogen ( and helium ) to be captured-the thermal velocity of the gas is less than the surface escape velocity.