RESURFACING PROCESSES ON MARS. Ryan B. Anderson, Walter S. Kiefer, Herbert V. Frey, and James H. Roark, Dept. of Astronomy, University of Michigan, Ann Arbor MI 48109, [email protected], Lunar and Planetary Institute, 3600 Bay Area Blvd., Houston TX 77058, [email protected], Planetary Geodynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt MD 20771, [email protected], SAIC at th...

THE LUNAR RECONNAISSANCE ORBITER. E. Mazarico1,G. A. Neumann2, D. D. Rowlands2, F. G. Lemoine2, D. E. Smith2, M.T. Zuber3, 1Oak Ridge Associated Universities at Planetary Geodynamics Laboratory, Code 698, NASA Goddard Space Flight Center, Greenbelt, MD 20771, [email protected]; 2Planetary Geodynamics Laboratory, Code 698, NASA Goddard Space Flight Center, Greenbelt, MD 20771; 3Departmen...

S. I. Khan, P. Adhikari, Y. Hong, H. Vergara, T. Grout, R. F. Adler, F. Policelli, D. Irwin, T. Korme, and L. Okello School of Civil Engineering and Environmental Sciences, University of Oklahoma, Norman, OK, USA NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, USA NASA Marshall Space Flight Cente...

24 25 Ground-based analog facilities have had wide use in mimicking some of the features of space 26 flight, in a more controlled and less-expensive manner. One such analog is parabolic flight, in 27 which an aircraft flies repeated parabolic trajectories that provide short-duration periods of free 28 fall (0g) alternating with high-g pullout or recovery phases. Parabolic flight is unique in be...

UNLABELLED Bone loss is a current limitation for long-term space exploration. Bone markers, calcitropic hormones, and calcium kinetics of crew members on space missions of 4-6 months were evaluated. Spaceflight-induced bone loss was associated with increased bone resorption and decreased calcium absorption. INTRODUCTION Bone loss is a significant concern for the health of astronauts on long-d...

Space medicine is a unique field of medicine applying a broad understanding of medicine to the extreme environment of space. Physicians involved in space medicine play a pivotal role in understanding the effects of space flight on humans as well as mitigating problems associated with space flight, and managing any health effects that might develop on a mission (1). In addition to the many physi...

A concept formulation study of the control aspects of the fourth generation air traffic control system is presented. The results of this study are not strongly influenced by pre sent-day equipment. They are influenced by certain aspects of present airspace utilization and procedures which appear necessary for the design of an effective sYstem. The inputs to the control system design ticlude the...

Bone loss, a key concern for long-duration space travelers, is typically considered a female issue. The number of women who have flown long-duration space missions is now great enough to allow a quantitative comparison of changes in bone and renal stone risk by sex. Participants were 42 astronauts (33 men and 9 women) on long-duration missions to the International Space Station. Bone mineral de...