| Launchers Find information about the Ariane launch vehicle, Europe's Spaceport in French Guiana, and launcher technology. |
| Navigation Features the latest news on space-based navigation systems and Galileo and EGNOS. |
| Observing_the_Earth Features the latest news on missions and satellites of the European Space Agency, with images and animations from previous journeys. |
| Space_Science Features news and resources to inspire the general public and inform the media on the latest discoveries in space exploration, the search for life on other planets, and the origins of the universe. |
| Spacecraft_Operations ESOC, the European Space Operations Centre, is responsible for controlling ESA satellites in orbit and is situated in Darmstadt, Germany. |
| Technical_and_Quality_Management ESTEC, the European Space Research and Technology Centre, is the design hub for most ESA spacecraft and technology development, and is situated in Noordwijk, the Netherlands. |
| Telecommunications Features regularly updated news on European telecommunication satellites and the latest developments regarding Artemis and ARTES. |
| Abrashkin,_Victor University of Durham. Algebraic number theory. Publications and links. |
| Acciaro,_Vincenzo Universita' degli Studi del Molise. Computational number theory and computational algebra. Bibliography, curriculum vitae, courses information. |
| Achter,_Jeff Colorado State University, USA. Arithmetic geometry. Research papers and course information. |
| Adelmann,_Clemens Technical University Braunschweig. Algebraic number theory, elliptic curves, zeta- and L-functions. Publication and lectures. |
| Adhikari,_Sukumar_Das Harish-Chandra Research Institute. Arithmetical functions, transcendence, and Ramsey-type questions in combinatorial number theory. List of publications. |
| Adleman,_Leonard University of Southern California. Number theory and Cryptography. Research papers, pictures, curriculum vitae. |
| Agashe,_Amod University of Texas. Number theory and cryptography. Research papers, slides. |
| Agboola,_Adebisi University of California at Santa Barbara. Number theory and arithmetic geometry. Research papers and seminar information. |
| Ahlgren,_Scott University of Illinois. Number theory. Publications, links, conferences and seminars. |
| Aitken,_Wayne California State University, San Marcos. Algebraic and geometric number theory. Research and publications. |
| Akbary,_Amir University of Lethbridge, Alberta. Number Theory, L-Functions, Modular Forms, Elliptic Curves. Papers, thesis. |
| Akiyama,_Shigeki Niigata University. Topology and number theory. Publications and links. |
| Alaca,_Saban Carleton University. Algebraic number fields and elliptic curves. Publications, course information, and links. |
| Alladi,_Krishnaswami University of Florida. Number theory, combinatorics, discrete mathematics. Contact information and links of interest. |
| Allombert,_Bill Institut National de Recherche en Informatique et en Automatique (INRIA). Algorithmic number theory. Publications and contact information. |
| Anderson,_Greg University of Minnesota. Number theory. Publications and links. |
| Andrews,_George Pennsytlvania State University. Theory of partitions. Publications, preprints, curriculum vitae. |
| Andrianov,_Fedor University of California at Los Angeles. Number theory. Curriculum vitae, work in progress, preprints and publications. |
| Antoniadis,_Jannis University of Cologne. Number Theory. Includes publications and contact information. |
| Apostol,_Tom California Institute of Technology. Analytic number theory. Recent publications. |
| Arif,_Shamim_Akhtar Lahore University of Management Sciences, Pakistan. Algebraic number theory. |
| Arledge,_Jane Mesa State College. Computer science, mathematics, and statistics. Semester schedule information. |
| Armitage,_Vernon University of Durham. Number theory. Elliptic functions problems sheets and solutions. |
| Armon,_Mary_Vlastnik Knox College, Illinois, USA. Logarithmic number theory, mathematical cryptography. Contact information and educational background. |
| Chandrasekhar,_Subramanyan Brief biography and details of his scientific animosity with Eddington. (Author: Eric W. Weisstein) |
| Subrahmanyan_Chandrasekhar Concise biography from the National Academy of Sciences. |
| Subrahmanyan_Chandrasekhar Brief biography including six photographs, summary of awards, and other references. |
| Subrahmanyan_Chandrasekhar_1910-1995 Brief obituary and photograph (from NASA's Astronomy Picture of the Day). |
| Subramanyan_Chandrasekhar_-_Autobiography Fairly detailed and personal account of his life and work. Includes bibliography of major monographs. (From the Nobel e-Museum) |
| Booksh,_Karl_S_ Instrumentation, applications, publication list, members' profiles and contacts at the Arizona State University. |
| Bristol_Centre_of_Chemometrics Includes tutorials, routines for MS Excel for principal component analysis, partial least squares and multiple linear regression, publications, PhD studentships, and contacts at the University of Bris |
| Chemometrics_Research_Department Research projects, associated programs and publications, industrial partnerships, courses and contacts for members at Radboud University Nijmegen, The Netherlands. |
| Eumetrics Pattern recognition for predicting properties not directly observable by a simple chemical measurement, but dependent on chemical composition and behaviour at the University of Seville. |
