161. Aerojet NEAR Spacecraft Propulsion System Technical details on the NEAR probe's engine. http://control.aerojet.com/Propulsion/spacecraft_propulsion/near/

Aerojet Fine Chemicals Electronic and Weapon Systems Strategic and Space Propulsion News and Events ... NEAR The Near Earth Asteriod Rendezvous (NEAR) Spacecraft and Aerojet Artist's depiction of NEAR spacecraft in flight near asteroid. Aerojet built the propulsion system for the NEAR spacecraft which is performing flyby scans of various asteroids in the solar system. We believe that this is the only Aerojet designed interplanetary spacecraft propulsion system ever flown. The gentlemen to the rightplayed a key role in the success of this important mission. Pictured from left to right are: Doug Anderson, Dave Gallet, Sam Wiley, Kip Lucas NEAR Mathilde/Eros Journey Using Aerojet Propulsion System Johns Hopkins University Applied Physics Laboratory (APL) gave the green light and a $9 million contract to Aerojet to develop the propulsion system for NASA's first Discovery Program . Combining both previously proven and new components, the 284-pound system will propel the NEAR spacecraft through small disturbances, as well as deep space maneuvers. The three-year mission will rendezvous with asteroid 433 Eros on February 6, 1999. Aerojet's propulsion system includes seven Fine Velocity Control (FVC) thrusters that fire periodically to hold the spacecraft steady. "There are reaction or momentum wheels that become wound up sort of like small springs after making adjustments due to wind or other elements to keep the vehicle on track," said Program Manager Eric Motz. "Our smaller one-pound thrusters are fired to counter the spacecraft's torque and thus, allow the wheels to unwind." There are also five-pound FVC thrusters that are used for small spacecraft velocity corrections and provide 3-axis stability control during large thruster firings.

162. Canonical List Of Space Transportation Methods Attempts to list all known space propulsion methods. http://www.geocities.com/danielravennest/CanonicalList.html

Canonical List of Space Transportation and Engineering Methods Version 0.79 July 26, 2001 by Dani Eder DaniEder@aol.com This document is a an attempt list of all known space transport and space engineering methods. It includes only those methods whose underlying physical principles are understood (i.e. no Star Trek warp drives). It is the product of a number of years of collecting and, occasionally, inventing them. I am motivated by a desire to see civilization expand into space and my frustration by the slow pace of progress to date. Most current space vehicles and projects use techniques that existed in the 1950's and 1960's. Some new ideas were developed as early as 1960, but have not been put into used even today. From the 1970's to today many additional ideas have been generated. Most of these have received scant attention. By disseminating information on these ideas, I hope others will realize the vast untapped potential contained in these ideas. This draft (version 0.79) lists all the concepts I am aware of, with at least a basic description of each. As you can tell by the version number, which is less than one, this is still very much a work in progress. Later versions of this document are intended to flesh out each method with improved descriptions and current references. If you know of a method which is not on this list, I would appreciate being informed of it. If you have references or text descriptions on a concept, they would be appreciated also. Some related information on the basics of space transport, the forces and energies used, and space project engineering are included. Editorial comments and material that needs lots of editing appear in square brackets.

163. Net Propulsion Lab - Roanoke/Atlanta Web Design Web design firm serving both the Roanoke and Atlanta, Georgia areas. http://www.netpropulsionlab.com

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164. USS Enterprise 2 Propulsion Plant "Losers" Official website of the USS Enterprise Two propulsion Plant Losers including Reactor Department and Engineering Department Personnel RM22, RC22, RE22, EM22. http://www.2plantlosers.com/

Official Website of No.2 Propulsion Plant "Losers" Dedicated to the men who served USS Enterprise's Number Two Propulsion Plant. Photo of the Day Please sign the Logbook! Sign it! View it Also visit for more Enterprise memories! Are You a Former or Current 2 Planter? Click here and tell us about yourself! WINNERS ENTER HERE LOSERS ENTER HERE

165. Scientific Research - Propulsion Research Center (part of Marshall Space Flight Center). Gives details on current research projects. http://www.spacetransportation.com/sciresearch/prc.html

Text Only Home Scientific Research Propulsion Research Center New technologies start with new ideas, and new ideas develop from research. The Marshall Center's Propulsion Research Center is a major hub for NASA's fundamental space propulsion research, now being conducted to improve access to space, open the space frontier for ambitious exploration, and strengthen commercial development and human settlement of space. The Propulsion Research Center supports Marshall's designation as a key leader in NASA's space propulsion technology research. The center conducts propulsion science from development to analysis to testing leading to advanced propulsion concepts and improvements to existing space propulsion systems. The research conducted here truly is science at the edges. The Propulsion Research Center generates advanced concepts and ideas for rapid interplanetary travel and journeys beyond our solar system. Revolutionary propulsion technologies, such as

166. Hybrid Electric Vehicles Search. HEV Program Background Auto Manufacturer Accomplishments CurrentActivities What is an HEV HEV Components Frequently Asked http://www.ott.doe.gov/hev/

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167. Physical Oceanography DAAC Home Page + View the NASA Portal, Search JPL. JPL Home, Earth, Solar System,Stars Galaxies, Technology. PO.DAAC Home Access Data FTP Education http://podaac-www.jpl.nasa.gov/

+ View the NASA Portal Search JPL The Physical Oceanography Distributed Active Archive Center (PO.DAAC) is responsible for archiving and distributing data relevant to the physical state of the ocean. Near-Real-Time Images Visualization (including GIS Formats) Check out our new FAQ Tool! Tide Models ... PO.DAAC Privacy Statement Last Modified: 02-Jun-2004 16:07 / C California Institute of Technology (NASA/JPL PO.DAAC) Site Manager: Robert Benada Webmaster: Monika Kessling

168. AIAA - Publications Publications Journals List of Journals http://www.aiaa.org/publications/index.hfm?pub=5

169. Conferences, Symposia And Workshops Organized By ESA http://www.congrex.nl/03-1/

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170. Near-Earth Object Program Hayabusa Spacecraft Rounds Earth and Heads for NearEarth Asteroid. HayabusaImage of Earth Image of the Earth taken by the Hayabusa spacecraft. http://neo.jpl.nasa.gov/

+ View the NASA Portal Hayabusa Spacecraft Rounds Earth and Heads for Near-Earth Asteroid Image of the Earth taken by the Hayabusa spacecraft. Don Yeomans Paul Chodas NASA's Near Earth Object Program Office May 19, 2004 At 6:23 am (Greenwich time) on May 19, the Japanese Hayabusa spacecraft successfully made a close Earth approach (altitude = 3725 km), thereby gaining the velocity it needs to reach the near-Earth asteroid Itokawa, named for the father of Japanese rocketry. During the Earth swingby, the spacecraft took images of the Earth and moon to test and calibrate the on board camera called AMICA (Asteroid Multi-band Imaging Camera). Upon its arrival at the asteroid in the summer of 2005, the Hayabusa spacecraft will hover near the asteroid's surface for about four months. Its instruments will study the surface in detail, determine the asteroid's mass and bulk density and determine which minerals are present. A small coffee-can-sized surface hopper, called MINERVA, will leap about the asteroid taking surface temperature measurements and high-resolution images with each of its three miniature cameras. The spacecraft will collect up to three surface samples as its sample horn captures small pieces of the asteroid ejected when tantalum pellets are fired into its surface at 300 meters per second. With these surface samples tucked safely into the spacecraft's sample capsule, the spacecraft will return to Earth, arriving on June 10, 2007, and the sample capsule will parachute to the ground in Australia.

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