A simple targeting algorithm for trans-Earth injection is developed. The techniques presented in this paper build on techniques developed for the Apollo program and other lunar and interplanetary missions. Presently, more sophisticated algorithms exist for solving this problem, but the simplicity of this particular algorithm makes it well-suited for on-board use during contingency and abort ope...

Optical images of the nearby star Fomalhaut show a ring of dust orbiting the central star. This dust is in many respects expected to be similar to the zodiacal dust in the solar system. The ring displays a clear brightness asymmetry, attributed to asymmetric scattering of the central starlight by the circumstellar dust grains. Recent measurements show that the bright side of the Fomalhaut ring ...

Many marine populations exhibit high variability in the recruitment of young into the population. While environmental cycles and oceanography explain some patterns of replenishment, the role of other growth-related processes in influencing settlement and recruitment is less clear. Examination of a 65-mo. time series of recruitment of a common coral reef fish, Stegastes partitus, to the reefs of...

470 sleep EEGs from 366 healthy participants in a light-controlled sleep laboratory (see Experimental Procedures in Supplemental Information, published with this article online). Lunar classes were defined as previously [2], with lunar class 1 representing full moon ± 4 nights, lunar class 2 covering the waxing and waning moon periods (full moon ± 5–9 nights) and lunar class 3 representing new ...

Introduction and Background: The history of volcanism on the western near side of the Moon is unique in both its duration and the basaltic compositions it left behind on the lunar surface. Together, Oceanus Procellarum and Mare Imbrium compose the largest expanse of the lunar maria with deposits ranging from the early history of lunar volcanism through its last major phases. Various techniques ...

OBJECTIVE Superstition is common and causes discomfiture or fear, especially in patients who have to undergo surgery for cancer. One superstition is, that moon phases influence surgical outcome. This study was performed to analyse lunar impact on the outcome following lung cancer surgery. METHODS 2411 patients underwent pulmonary resection for lung cancer in the past 30 years at our instituti...

A satellite trajectory propagation program called N-Body is being developed to support the upcoming Deep Space Program Science Experiment (DSPSE) mission which is also known as Clementine. The program will support the activities of the mission operations center which is run by The Naval Research Laboratory. The computer program is designed to predict a spacecraft orbit through the various phase...

Animals are exposed to many conflicting ecological pressures, and the effect of one may often obscure that of another. A likely example of this is the so-called ‘‘lunar phobia’’ or reduced activity of bats during full moon. The main reason for lunar phobia was thought to be that bats adjust their activity to avoid predators. However, bats can be prey, but many are carnivorous and therefore pred...

Introduction: Previous studies of heat flow from the lunar mantle have suggested that the amount of heat flow is strongly dependent on the abundance of radioactive isotopes in the mantle and is at least loosely correlated with Th content [1,2]. Measurements of heat flow from the Apollo missions had been used to imply that those measurements could be extended outside of KREEP terrains; however, ...