OBJECTIVES Popular belief holds that the lunar cycle affects human physiology, behavior, and health, including sleep. To date, only a few and conflicting analyses have been published about the association between lunar phases and sleep. Our aim was to analyze the relationship between lunar phases and sleep characteristics. METHODS In this retrospective, cross-sectional analysis, data from 319...

The ages of rocks from the lunar highlands vary widely, even for a single rock sample. This makes it difficult to quantitatively test ideas for early lunar differentiation and formation of the crust. Lars Borg and Amy Gaffney (Lawrence Livermore National Laboratory), and Charles Shearer (University of New Mexico) have devised a set of guidelines to apply to geochronological data that leads to a...

The residual brightness of the shadowed Moon during a lunar eclipse is attributed to unscattered sunlight rays refracted in the Earth’s atmosphere. The classical theory of lunar eclipses is built on the premise that the sunlight scattered by the gases and particles in the atmosphere contributes negligibly to the brightness of the eclipsed Moon. The current work revisits the lunar eclipse theory...

OBJECTIVES Knowledge of physiological variations of bone mineral density (BMD) in newborns and infants is necessary to evaluate pathological changes associated with fractures. Limited reference data for children under 5 years old are available. This study provides normative data of lumbar BMD for the Lunar Prodigy in young children under 5 years old. SUBJECTS AND METHODS We assessed cross-sec...

Introduction: The New Views of the Moon initiative has integrated remotely sensed and sample data in its approach to synthesizing lunar research over the last 30+ years. This integration has clearly demonstrated what we know and, maybe more importantly, what we don t know about the Moon. Most significantly, it has helped to formulate fundamental scientific questions about the Moon that still ne...

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...

Introduction: It is intriguing that the majority of lunar meteorites (~30) have been discovered in the hot deserts of Middle-East and North Africa. In contrast, of 10s of thousands of meteorite finds from Antarctica over 30 years, only a handful (~5) are lunar. This bias towards the lunar meteorite recovery from the hot deserts may be due to the preferential fall of lunar meteorites in these re...

The lunar crust provides a record of the planetary formation and early evolutionary processes and contains a wealth of information about the origin and evolution of the Earth-Moon system (e.g., Taylor 1982; NRC 2007; Canup 2008, 2012; Cuk and Stewart 2012; Young et al. 2016). Understanding these processes is crucial for the reconstruction of the early evolutionary stages of the Earth, e.g., the...

Physical and chemical reactions occurring as a result of the high-velocity impacts of meteorites and micrometeorites and of cosmic rays and solar-wind particles are major causes of space weathering on airless planetary bodies, such as the Moon, Mercury, and asteroids. These weathering processes are responsible for the formation of their regolith and soil. We report here the natural occurrence o...

Introduction: It has been known for over 20 years that certain meteorites originated on the moon and Mars. The launch and delivery of these stones is understood qualitatively as a consequence of impact events on those bodies. One of the puzzling features of the sample population is the relative abundance of lunar vs. Martian meteorites. One would think that lunar meteorites should be much more ...