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» ADAF Theory    Accretion disk theory, mixing-length theory of convection, advection-dominated accretion flows.    http://astrosun.tn.cornell.edu/us-rus/adaf.htm

» Above the Skies, An Exploration into Our Universe Through Animated Spectroscopy    A description at the layman level about the applications of spectroscopy in the investigation of the Solar System, with interactive diagrams    http://hea-www.harvard.edu/~efortin/thesis/html/index.shtml

» Astronomy and Astrophysics for all...    you can find every thing you want on this topic in this site...    http://www.geocities.com/astrosci4u/

» Astrophysics    E-Print archive since April of 1992.    http://www.arxiv.org/archive/astro-ph

» Astrophysics and Astronomy    Introductory essays on astrophysics and astronomy.    http://www.hpwt.de/Astroe.htm

» Cambridge Relativity    Beginner's guide to all the basic concepts of Astrophysics written by active scientists at Cambridge University, UK.    http://www.damtp.cam.ac.uk/user/gr/public/

» Canadian Institute for Theoretical Astrophysics    Nationally supported research centre. Find out about current research, upcoming seminars and job opportunities.    http://www.cita.utoronto.ca

» Cause of the Characteristics of Quasars    Hypothesis which attempts to explain the characteristics of QSOs (Quasi-Steller Objects), a.k.a. quasars, as optical illusions created by gravitational lensing and other phenomena.    http://www.geocities.com/isoptera.geo/index.html

» Dyson Sphere    A list of frequently asked questions with answers.    http://www.nada.kth.se/~asa/dysonFAQ.html

» Encyclopedia of Astronomy and Astrophysics    Comprehensive archive of explantory articles on all key Astrophysics topics, categorised and fully searchable; actively updated by the Institute of Physics.    http://eaa.iop.org/

» Famous Astrophysicists    Profiles several prominent astrophysicists.    http://www.famous-astrophysicists.com

» Fermilab Theoretical Astrophysics Group    Partially funded by a NASA Astrophysics Theory grant, find information about the group's past and future meetings.    http://www-astro-theory.fnal.gov

» Grand Challenge Problems in Computational Astrophysics    Research session at the Institute for Pure and Applied Mathematics (IPAM), Los Angeles, CA, USA; 7 March - 10 June 2005.    http://www.ipam.ucla.edu/programs/pca2005/

» Gravity is Cool, or, Why our Universe is Hospitable to Life    Text of the 1999 Oppenheimer lecture at UC Berkeley given by professor Freeman Dyson on the origin of life and other subjects.    http://www.hartford-hwp.com/archives/20/035.html

» Hands-On Astrophysics    Offers educational products that help students understand basic astronomy concepts.    http://hoa.aavso.org

» Hyperspace    Site devoted to hyperspatial theories.    http://artling.tripod.com

» Interdisciplinary Astrophysics Group        http://altamira.asu.cas.cz/

» Living Reviews in Solar Physics    A peer-refereed, solely online journal publishing invited reviews covering all areas of solar and heliospheric physics research. Published by the Max Planck Institute for Aeronomy, Katlenburg-Lindau, Germany.    http://solarphysics.livingreviews.org

» Modified Newtonian Dynamics    Overview of a controversial theory which is not generally accepted by the astrophysical community.    http://ca.geocities.com/mercy@rogers.com/

» NASA Astrophysics Data System    Search system for abstracts in astrophysics, planetary sciences and solar physics.    http://adsabs.harvard.edu/

» Network Generator    Generates astrophysical reaction rates online using an extended database.    http://www-astro.ulb.ac.be/Netgen/form.html

» Nuclear Astrophysics Data    An area for providing nuclear data for astrophysics calculations, such as nucleosynthesis, stellar evolution, the Big Bang, and super-nova dynamics.    http://t2.lanl.gov/data/astro/astro.html

» Olber's Paradox Solved    A well know problem from astrophysics, Olber's paradox (Why is the night sky dark?), solved. As well as Newton's related Gravity paradox.    http://home.wanadoo.nl/ronald.koster/olber.html

» Physics 208 - Introduction to Astrophysics    Course offered via The Electronic University, an educational outreach server at the University of Oregon.    http://zebu.uoregon.edu/~imamura/astro.208.html

» Physics Topics - Teaching Notes    Teaching notes on celestial mechanics, classical mechanics, and stellar atmospheres.    http://orca.phys.uvic.ca/~tatum/

» Red Shift by Photon Decay    Author explains how Hubble's red shift of starlight spectra results from photon decay, proportional to traveled distance.    http://members.chello.nl/~n.benschop

» SIMBAD Astronomical Database    The SIMBAD astronomical database provides basic data, cross-identifications and bibliography for astronomical objects outside the solar system. SIMBAD can be queried by object name, coordinates, other criteria (filters), and lists of objects.    http://simbad.u-strasbg.fr/Simbad

» Solar System - Celestial Mechanics    Presents ideas about the rotation of the sun and planets.    http://www.surf2000.de/user/f-heeke/index.html

» Space Physics Textbook    A free online textbook on space physics.    http://www.oulu.fi/~spaceweb/textbook/

» THIS-Tuneable Heterodyne Infrared Spectrometer    THIS - instrument pages for the Tuneable Heterodyne Infrared Spectrometer developed by the University of Cologne. THIS is a transportable receiver designed for atmospheric and astrophysical observations in the mid infrared spectral region (7-28 µm).    http://www.ph1.uni-koeln.de/workgroups/astro_instrumentation/this/

» Temporal Annex    Information mostly on the fourth dimension and theoretical physics.    http://temporal_science.tripod.com/

» The Astrophysical Journal    Devoted to recent developments, discoveries, and theories in astronomy and astrophysics.    http://www.journals.uchicago.edu/ApJ/

» The Astrophysics Spectator    Articles published on this site cover current research in astronomy and astrophysics, describe our current understanding of astronomical phenomena, and comment on issues related to astronomical research.    http://www.astrophysicsspectator.com/

» The Electric Universe    Physics knows four forces; 20th-century scientists were convinced that one of those, the electric force, played no macroscopic role in the Universe; site explains why that is incorrect.    http://www.the-electric-universe.info/

» The NASA Astrophysics Data System    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://adswww.harvard.edu/

» The Structure, Stability, and Dynamics of Self-Gravitating Systems    An interactive Astrophysics textbook from Louisiana State University.    http://www.phys.lsu.edu/astro/H_Book.current/H_Book.shtml

» The Titius-Bode Number Sequence Deciphered    An explanation of the Titius-Bode Law of planetary spacing.    http://users.telenet.be/TaoWeb/TitiusBode.htm

» Titius-Bode Law    Overview of the Titius-Bode Law.    http://milan.milanovic.org/math/english/titius/titius.html

» University of Surrey - Department of Physics (Research)    University of Surrey abridged version of the book "Astrophysics" , with many links to relevant material on astronomy, astrophysics and cosmology.    http://www.ph.surrey.ac.uk/astrophysics/index.html

» You Be the Astrophysicist    Interactive site for learning about astronomy and astrophysics.    http://imagine.gsfc.nasa.gov/YBA/yba-intro.html