Free Link Directory :: 40070@web Free open web directory. Submit link directory. Find what you have been looking for. Submit as many websites or page urls as you want! http://www.40070.org The NASA Astrophysics Data System - Astrophysics - Free Link Directory :: 40070@web The Astrophysics Data System (ADS) is a NASA-funded project which maintains four bibliographic databases containing more than 4.0 million records: Astronomy and Astrophysics, Instrumentation, Physics and Geophysics, and preprints in Astronomy. http://www.40070.org/listing/93/The+NASA+Astrophysics+Data+System http://www.40070.org/listing/93/The+NASA+Astrophysics+Data+System Tue, 26 Nov 2013 09:36:18 GMT SIMBAD Astronomical Database - Astrophysics - Free Link Directory :: 40070@web The SIMBAD astronomical database provides basic data, cross-identifications, bibliography and measurements for astronomical objects outside the solar system. SIMBAD can be queried by object name, coordinates and various criteria. Lists of objects and scripts can be submitted. http://www.40070.org/listing/92/SIMBAD+Astronomical+Database http://www.40070.org/listing/92/SIMBAD+Astronomical+Database Tue, 26 Nov 2013 09:35:13 GMT Cambridge Relativity - Astrophysics - Free Link Directory :: 40070@web These Cambridge Relativity and Cosmology public home pages have been created in response to the UK Particle Physics & Astronomy Research Council (PPARC) drive to improve the public understanding of science and technology (PUST). The editors and authors of these pages are... http://www.40070.org/listing/91/Cambridge+Relativity http://www.40070.org/listing/91/Cambridge+Relativity Tue, 26 Nov 2013 09:33:44 GMT The Astrophysics Spectator - Astrophysics - Free Link Directory :: 40070@web This web site is devoted to our current understanding of and research in astronomy and astrophysics. My goals in publishing these pages are to present current work to a scientifically-knowledgeable readership, to draw out the dominant themes that are encountered when one... http://www.40070.org/listing/90/The+Astrophysics+Spectator http://www.40070.org/listing/90/The+Astrophysics+Spectator Tue, 26 Nov 2013 09:32:07 GMT