Aerospace Scientific - AI in Space - Experts in the application of Artificial Intelligence to the space industry.
AstroCalculator.com - Astronomy Calculator for time coordinates correstions and much much more
AstroViewer - The AstroViewer planetarium software displays an interactive sky map for any time and any position on Earth.
David Chandler Company - Astronomy software, charts, and books by David Chandler
Deepsky 2000
Educational Software at GEODONKA.com - The One Stop for Educational Software from kids to Adults.
Interface & Control Systems, Inc - OPEN SOURCE Command and Control Systems for Mission Critical Applications.
LiveSky - Astronomy search engine connected to Starry Night's 19 million object database.
Moonport DOT Org - A site dedicated to the free ORBITER Space Flight Simulator program (http://www.orbitersim.com). Current NASA space news.
Orbit Xplorer - Educational orbit and gravitation simulator. Includes many premade simulations with onscreen activities and exercises.
Planetmeister Productions - Home of the Hubble Gallery Vol 1 CD-ROM.
Software Bisque - Publishers of TheSky Astronomy Software and other astronomy-related products.
SpaceTethers.com - Site has a Java applet that can simulate tethers, rockets, and reentry. Also shows how tethers can reduce launch costs.
The Deep Sky Database - An online resource for building customized observing lists based on a database with over 10,000 deep sky objects.
Toni Straub's Homepage - Download skyglobe - a cool astronomy program. Also links to LunarSat and to J-Track (3D satellite tracking).