NASA head predicts space station delay

Results of Principal Nasa Studies on Space Station Uses and Functional Requirements

NASA CONFERENCE on SPACE TELEROBOTICS

Mechanical Engineering Department University of Minnesota Minneapolis, MN 55455 USA Abstract Robot manipulators are designed to perform tasks which would otherwise be executed by a human operator. No manipulator can even approach the speed and accuracy with which humans execute these tasks. But manipulators have the capability to exceed human ability in one particular area; strength. Through an...

Nasa Directions in Space Propulsion

In his National Space Policy of 1988, President Reagan committed to a goal of expanding human presence and activity in the solar system. This goal has provided the impetus for a resurgence of activity across a broad range of space technology efforts in general and for a number of propulsion technology programs in particular. Building on recommendations from several detailed studies of the U.S. ...

Space Station Alpha Joint Bearing

Perhaps the most critical structural system aboard the Space Station is the Solar Alpha Rotary Joint which helps align the power generation system with the sun (Figure 1). The joint must provide structural support and controlled rotation to the outboard transverse booms as well as power and data transfer across the joint. The Solar Alpha Rotary Joint is composed of two transition sections and a...

Station Delay Calibration for Ranging Measurements

The research described in this publication was carried out by the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. © 2009 California Institute of Technology. Government sponsorship acknowledged. Ranging measurements in the Deep Space Network (DSN) have been contributing to spacecraft navigation and radio scie...