2 Abstract. We present the rst results of an ongoing eeort to search for new species in the lunar atmosphere. We discuss our observations in terms of the degree to which atomic metal abundances in the lunar atmosphere are stoichiometric, that is, proportional to surface abundances (as the Na:K ratio is). Na and K are the only atmospheric constituents to have been observed from Earth, but Apollo...

This paper presented a method for navigation of lunar rover. This method used the real lunar data to model the virtual terrain. In addition, this method not onle considers uncertainty of sensor data, and does integrate directional slip prediction into the path planning algorithm resolving the issue of emerging higher-level behaviors such as planning a path with switch-backs up a slope. Simulati...

0019-1035/$ see front matter 2011 Elsevier Inc. A doi:10.1016/j.icarus.2011.08.011 ⇑ Corresponding author at: Harvard-Smithsonian Garden Street, Cambridge, MA 02138, USA. Fax: +1 61 E-mail address: [email protected] (M. Ćuk). Ćuk et al. (Ćuk, M. Gladman, B.J., Stewart, S.T. [2010]. Icarus 207 590–594) concluded that the the lunar cataclysm (late heavy bombardment) was recorded in lunar Imbria...

Circadian rhythms pre-adapt the physiology of most organisms to predictable daily changes in the environment. Some marine organisms also show endogenous circalunar rhythms. The genetic basis of the circalunar clock and its interaction with the circadian clock is unknown. Both clocks can be studied in the marine midge Clunio marinus (Chironomidae, Diptera), as different populations have differen...

In the experimental tests of gravity, there have been considerable interests in the possibility of intermediate-range gravity. In this paper, we use the earth-satellite measurement of earth gravity, the lunar orbiter measurement of lunar gravity, and lunar laser ranging measurement to constrain the intermediate-range gravity from λ = 1.2×10m−3.8×10m. The limits for this range are α = 10−5×10, w...

Introduction: The lower crust of the Moon remains a critical unknown for models of lunar compositional mass balance and for models of petrogenesis of lunar rock types. Key questions addressed here are (1) how mafic are the rocks of the lower crust and (2) are they ferroan or magnesian? Answers to these questions bear on the concentration and distribution of radiogenic heat-producing elements an...

[1] The main objective of the present study is to discuss in detail the results obtained from an inversion of the Apollo lunar seismic data set, lunar mass, and moment of inertia. We inverted directly for lunar chemical composition and temperature using the model system CaO-FeO-MgO-Al2O3-SiO2. Using Gibbs free energy minimization, stable mineral phases at the temperatures and pressures of inter...

Human and animal physiology are subject to seasonal, lunar, and circadian rhythms. Although the seasonal and circadian rhythms have been fairly well described, little is known about the effects of the lunar cycle on the behavior and physiology of humans and animals. The lunar cycle has an impact on human reproduction, in particular fertility, menstruation, and birth rate. Melatonin levels appea...

Introduction: Water (OH and/or H2O) on the lunar surface and preserved in lunar materials can record information about solar wind, cosmic ray, impact, and lunar interior processes. In particular, understanding if any lunar surface hydration signatures can be linked to endogenous (e.g., magmatic) sources has the potential to inform us of the nature and distribution of volatiles in the lunar inte...

Introduction: The Moon is generally thought to have formed from a circumterrestrial disk generated by the impact of a Mars-sized body onto a nearly-formed Earth [1]. The gravitational energy released in such an event is sufficent to completely melt and partially vaporize the Earth and lunar-forming material. This fluid phase of the evolution is not well understood, but may have delayed lunar ac...