Results 201 to 210 of about 36,097 (261)

Hydrogen-carbon doubly superionic conduits of carbonic acids in planetary ices. [PDF]

Sci Adv
Deng J, Gou H, Hu Q.
europepmc   +1 more source

Reply to Gao et al. and Xu: Greening the Taklamakan: Human efforts to convert desert into a carbon sink. [PDF]

Proc Natl Acad Sci U S A
Noor S, Jiang X, Wang X, Yang J, Newman S, Li KF, Li L, Yu L, Li X.   +8 more
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Universal energy limits of radiation belts in planetary and brown dwarf magnetospheric systems. [PDF]

Sci Adv
Turner DL, Raptis S, Osmane A, Egan A, Clark G, Nordheim T, Regoli L, Ukhorskiy AY.   +7 more
europepmc   +1 more source

Dawn-dusk Asymmetrical Distribution of Saturn's Cusp. [PDF]

Nat Commun
Xu Y, Yao ZH, Arridge CS, Zhang B, Chen JJ, Badman SV, Ray LC, Coates AJ, Ye SY, Qin TS, Zheng ZQ, Dunn WR, Wei Y.   +12 more
europepmc   +1 more source

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The formation of the planetary system

Celestial Mechanics, 1984
One of the most challenging problems of natural science is the question of how our solar system was formed some 4,6 billion years ago. The main difficulties encountered in trying to find any definite answer to this problem are twofold. In the first place we cannot design direct experiments which could give us clues to the relative importance of the ...
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On the Spacing of Planetary Systems

Physical Review Letters, 2000
We present a simplified model of planetary accretion based on conservation of mass, conservation of momentum, and angular-momentum-deficit stability. Within the limitations of this model, we show how the organization of generic planetary systems may be derived from the knowledge of their initial mass distribution.
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Planetary Systems and Extraterrestrial Life

Origins of Life, 1974
The paper reviews the present status of the problem of the existence of other planetary systems in the Galaxy. Observational data and theoretical results are presented to show that the occurrence of planetary systems is, most probably, not a universal phenomenon. Study of the stability of planetary orbits in the vicinity of double stars indicates that,
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THE ROLE OF RESONANCES IN PLANETARY SYSTEMS

International Journal of Bifurcation and Chaos, 2006
This paper reviews the important role of resonances in the structure of planetary systems. After a short introduction to the basics of orbital dynamics of motion in resonances we describe the dynamics of our planetary systems and also of extrasolar planetary systems, where up to now more than 100 are known.
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The Planetary System

2003
In this chapter we give an overview of the properties of our planetary system — both those related to its dynamical structure, namely the orbital and rotational motions of the constituent bodies, and those connected with their physical nature (e.g., size, composition, the presence of an atmosphere and/or of a solid surface).
Bruno Bertotti, Paolo Farinella, David Vokrouhlický   +2 more
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