 Temporal Annex - http://temporal_science.tripod.com/ Information mostly on the fourth dimension and theoretical physics. |
 Cause of the Spectral Characteristics of Quasars - http://charles_w.tripod.com/quasar.html Hypothesis by Charles Weber which attempts to explain the characteristics of quasi-stellar objects as optical illusions created by gravitational lensing and other phenomena. |
 Hyperspace - http://artling.tripod.com Site devoted to hyperspatial theories. |
 Hubble Red Shift and Quantum Evolution - http://www.eskimo.com/~mikel137/ Michael Lewis provides an equation describing the Hubble red shift light decay curve using existing mathematics. |
 Cambridge Relativity - http://www.damtp.cam.ac.uk/user/gr/public/ Beginner's guide to all the basic concepts of Astrophysics written by active scientists at Cambridge University, UK. |
 Smithsonian Astrophysical Observatory - http://www.cfa.harvard.edu/sao/ A research institute of the Smithsonian Institution headquartered in Cambridge, MA, where it is joined with the Harvard College Observatory (HCO) to form the Harvard-Smithsonian Center for Astrophysics (CfA). |
 NASA Astrophysics Data System - http://adsabs.harvard.edu/ Search system for abstracts in astrophysics, planetary sciences and solar physics. |
 The NASA Astrophysics Data System - http://adswww.harvard.edu/ 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. |
 Above the Skies, An Exploration into Our Universe Through Animated Spectroscopy - http://hea-www.harvard.edu/~efortin/thesis/html/index.shtml A description at the layman level about the applications of spectroscopy in the investigation of the Solar System, with interactive diagrams |
 Grand Challenge Problems in Computational Astrophysics - http://www.ipam.ucla.edu/programs/pca2005/ Research session at the Institute for Pure and Applied Mathematics (IPAM), Los Angeles, CA, USA; 7 March - 10 June 2005. |
 University of Surrey - Department of Physics (Research) - http://www.ph.surrey.ac.uk/astrophysics/index.html University of Surrey abridged version of the book "Astrophysics" , with many links to relevant material on astronomy, astrophysics and cosmology. |
 Encyclopedia of Astronomy and Astrophysics - http://eaa.iop.org/ Comprehensive archive of explanatory articles on all key Astrophysics topics, categorised and fully searchable; actively updated by the Institute of Physics. |
 The Astrophysical Journal - http://www.iop.org/EJ/journal/apj Devoted to recent developments, discoveries, and theories in astronomy and astrophysics. |
 Astrophysics - http://www.arxiv.org/archive/astro-ph E-Print archive since April of 1992. |
 Physics Topics - Teaching Notes - http://orca.phys.uvic.ca/~tatum/ Teaching notes on celestial mechanics, classical mechanics, and stellar atmospheres. |
 Hands-On Astrophysics - http://hoa.aavso.org Offers educational products that help students understand basic astronomy concepts. |
 Titius-Bode Law - http://milan.milanovic.org/math/english/titius/titius.html Overview of the Titius-Bode Law. |
 Living Reviews in Solar Physics - http://solarphysics.livingreviews.org 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. |
 The Structure, Stability, and Dynamics of Self-Gravitating Systems - http://www.phys.lsu.edu/astro/H_Book.current/H_Book.shtml An interactive Astrophysics textbook from Louisiana State University. |
 ADC Quick Reference: Basic Data on Galaxies - http://adc.astro.umd.edu/adc/quick_ref/ref_generalgalaxies.html An online astrophysics catalog that helps the user toward some of the more frequently used ADC dataset holdings regarding galaxies. |
 Solar System - Celestial Mechanics - http://www.surf2000.de/user/f-heeke/index.html Presents ideas about the rotation of the sun and planets. |
 Red Shift by Photon Decay - http://members.chello.nl/~n.benschop Author explains how Hubble's red shift of starlight spectra results from photon decay, proportional to traveled distance. |
 Canadian Institute for Theoretical Astrophysics - http://www.cita.utoronto.ca Nationally supported research centre. Find out about current research, upcoming seminars and job opportunities. |
 The Titius-Bode Number Sequence Deciphered - http://bellsouthpwp.net/j/o/josephconklin/jw/tb/titius.html Compares earth orbit to other planets using the Astronomical Unit as a measurement. |
 Gravity is Cool, or, Why our Universe is Hospitable to Life - http://www.hartford-hwp.com/archives/20/035.html Text of the 1999 Oppenheimer lecture at UC Berkeley given by professor Freeman Dyson on the origin of life and other subjects. |
 Astrophysics - http://en.wikipedia.org/wiki/Astrophysics Wikipedia article on this branch of astronomy that deals with the physics of the universe, including the physical properties of celestial objects and the interstellar medium, as well as their interactions. |
 The Electric Universe - http://www.the-electric-universe.info/ 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. |
 Tuneable Heterodyne Infrared Spectrometer - THIS - http://www.ph1.uni-koeln.de/node/304 Instrument pages for the transportable receiver designed for atmospheric and astrophysical observations in the mid infrared spectral region (7-28 µm). Developed by the University of Cologne. |
 Network Generator - http://www-astro.ulb.ac.be/Netgen/form.html Generates astrophysical reaction rates online using an extended database. |
 High Energy Astrophysics Group - http://altamira.asu.cas.cz/ Astronomical Institute, Ondrejov. Focuses on the research of cosmic objects in X-ray and gamma spectra region. General information, projects and workshops. |
 Dyson Sphere - http://www.nada.kth.se/~asa/dysonFAQ.html A list of frequently asked questions with answers. |
 Space Physics Textbook - http://www.oulu.fi/~spaceweb/textbook/ A free online textbook on space physics. |
 Virtual Institute of Astrophysics - http://www.cosmovia.org/ VIA provides lectures and forums where scientists from around the world can communicate and discuss problems and ideas in astroparticle physics. |
 AstroEngine - http://www.astroengine.com Space science blog by Dr Ian O'Neill discussing astrophysics concepts in an informed yet informal way. |
 Fermilab Theoretical Astrophysics Group - http://www-astro-theory.fnal.gov Partially funded by a NASA Astrophysics Theory grant, find information about the group's past and future meetings. |
 You Be the Astrophysicist - http://imagine.gsfc.nasa.gov/YBA/yba-intro.html Interactive site for learning about astronomy and astrophysics. |
 Nuclear Astrophysics Data - http://t2.lanl.gov/data/astro/astro.html An area for providing nuclear data for astrophysics calculations, such as nucleosynthesis, stellar evolution, the Big Bang, and super-nova dynamics. |
 Astrophysics and Astronomy - http://www.hpwt.de/Astroe.htm Introductory essays on astrophysics and astronomy. |
 SIMBAD Astronomical Database - http://simbad.u-strasbg.fr/Simbad 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. |
 The Astrophysics Spectator - http://www.astrophysicsspectator.com/ 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. |
 Astrophysics - http://www.physicsplanet.com/articles/astrophysics A short introduction to astrophysics with associated articles on a number of topics. |
 Olber's Paradox - http://www.ronaldkoster.net/olber.html A well know problem from astrophysics, Olber's paradox (Why is the night sky dark?), solved. As well as Newton's related Gravity paradox. |
 Encyclopedia of Astrophysics - http://www.scholarpedia.org/article/Encyclopedia_of_astrophysics A free peer-reviewed online publication written by scholars from around the world. |