Results 21 to 30 of about 3,435,507 (205)
Setting the Stage for Habitable Planets
Life, 2014 Our understanding of the processes that are relevant to the formation and maintenance of habitable planetary systems is advancing at a rapid pace, both from observation and theory.
Guillermo Gonzalez
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An Integrable Model for the Dynamics of Planetary Mean-motion Resonances [PDF]
Astronomical Journal, 2019 I consider the dynamics of mean-motion resonances (MMRs) between pairs of coplanar planets and derive a new integrable Hamiltonian model for the planets’ resonant motion.
S. Hadden
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Global geochemical fingerprinting of plume intensity suggests coupling with the supercontinent cycle
Nature Communications, 2019 The links between plate tectonics and deep mantle structure remain unclear. Here, the authors demonstrate that transition elements (Ni, Cr, and Fe/Mn) in basaltic rocks can be used as a tool to trace plume-related magmatism through Earth history, and ...
Hamed Gamal EL Dien +4 more
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Earth's Future, 2021 Extreme heat occurred over Alaska in June–July 2019, posing risks to infrastructure, ecosystem, and human health. It is vital to improve our understanding of the causes of such events and the extent to which anthropogenic forcing may alter their ...
Sarah K. Weidman +3 more
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Design and Research Co-Simulation Platform of Navigation and Dynamics on Planetary Rovers
Xibei Gongye Daxue Xuebao, 2019 The overall design idea of simulation platform of the planetary rover coupling navigation and dynamics is proposed to address the dilemma faced in the design of a navigation control system for Mars and other planetary exploration tasks.
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Nature Communications, 2023 Argyle is the world’s largest source of natural diamonds, yet one of only a few economic deposits hosted in a Paleoproterozoic orogen. The geodynamic triggers responsible for its alkaline ultramafic volcanic host are unknown. Here we show, using U-Pb and
Hugo K. H. Olierook +14 more
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Dynamic modeling and analysis of high-speed flexible planetary gear transmission systems
Alexandria Engineering Journal, 2023 Modern planetary gear transmissions are often made with flexible components and operated at high or varying speed. Despite advances in understanding their dynamic performance, they remain vulnerable to problems leading—in some cases—to subsequent system ...
Changzhao Liu +4 more
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Orbital forcing of ice sheets during snowball Earth
Nature Communications, 2021 Reconciling the Snowball Earth hypothesis with sedimentological cyclicity has been a persistent challenge. A new cyclostratigraphic climate record for a Cryogenian banded iron formation in Australia provides evidence for orbital forcing of ice sheet ...
Ross N. Mitchell +8 more
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Dynamical Models of Planetary Nebulae
The Astrophysical Journal, 1967 Dynamical models of spherically symmetric optically thin planetary nebulas taking into account thermal behavior of ...
S. Sofia, J. H. Hunter
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Planetary Dynamics and Habitable Planet Formation in Binary Star Systems [PDF]
, 2009 How our planet was formed, how life came about, and whether life exists elsewhere in the universe are among some of the long-standing questions in human history.
N. Haghighipour +2 more
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