Open Directory - Science: Physics: Astrophysics
See also: This category in other languages: - To be held March 14 - 19, 2010 at the Center for Space Plasma and Aeronomic Research (CSPAR) at The University of Alabama. - Space science blog by Dr Ian O'Neill discussing astrophysics concepts in an informed yet informal way. - E-Print archive since April of 1992. - A short introduction to astrophysics with associated articles on a number of topics. - 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. - Introductory essays on astrophysics and astronomy. - Beginner's guide to all the basic concepts of Astrophysics written by active scientists at Cambridge University, UK. - Nationally supported research centre. Find out about current research, upcoming seminars and job opportunities. - Hypothesis which attempts to explain the characteristics of quasi-stellar objects as optical illusions created by gravitational lensing and other phenomena. - A list of frequently asked questions with answers. - Comprehensive archive of explanatory articles on all key Astrophysics topics, categorised and fully searchable; actively updated by the Institute of Physics. - A free peer-reviewed online publication written by scholars from around the world. - Partially funded by a NASA Astrophysics Theory grant, find information about the group's past and future meetings. - Research session at the Institute for Pure and Applied Mathematics (IPAM), Los Angeles, CA, USA; 7 March - 10 June 2005. - Text of the 1999 Oppenheimer lecture at UC Berkeley given by professor Freeman Dyson on the origin of life and other subjects. - Offers educational products that help students understand basic astronomy concepts. - Astronomical Institute, Ondrejov. Focuses on the research of cosmic objects in X-ray and gamma spectra region. General information, projects and workshops. - 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. - Search system for abstracts in astrophysics, planetary sciences and solar physics. - Generates astrophysical reaction rates online using an extended database. - An area for providing nuclear data for astrophysics calculations, such as nucleosynthesis, stellar evolution, the Big Bang, and super-nova dynamics. - A well know problem from astrophysics, Olber's paradox (Why is the night sky dark?), solved. As well as Newton's related Gravity paradox. - Teaching notes on celestial mechanics, classical mechanics, and stellar atmospheres. - Author explains how Hubble's red shift of starlight spectra results from photon decay, proportional to traveled distance. - 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. - 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). - Information mostly on the fourth dimension and theoretical physics. - Devoted to recent developments, discoveries, and theories in astronomy and astrophysics. - 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. - 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. - 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. - An interactive Astrophysics textbook from Louisiana State University. - Compares earth orbit to other planets using the Astronomical Unit as a measurement. - Overview of the Titius-Bode Law. - 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. - University of Surrey abridged version of the book "Astrophysics" , with many links to relevant material on astronomy, astrophysics and cosmology. - VIA provides lectures and forums where scientists from around the world can communicate and discuss problems and ideas in astroparticle physics. - Interactive site for learning about astronomy and astrophysics.
