Astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties (luminosity, density, temperature, and chemical composition) of celestial objects and the interstellar medium, as well as their interactions.
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Space science blog by Dr Ian O'Neill discussing astrophysics concepts in an informed yet informal way.
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.
E-Print archive since April of 1992.
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.
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.
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.
Text of the 1999 Oppenheimer lecture at UC Berkeley given by professor Freeman Dyson on the origin of life and other subjects.
Astronomical Institute, Ondrejov. Focuses on the research of cosmic objects in X-ray and gamma spectra region. General information, projects and workshops.
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.
Search system for abstracts in astrophysics, planetary sciences and solar physics.
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.
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.
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).
An area for providing nuclear data for astrophysics calculations, such as nucleosynthesis, stellar evolution, the Big Bang, and super-nova dynamics.
Comprehensive archive of explanatory articles on all key Astrophysics topics, categorised and fully searchable; actively updated by the Institute of Physics.
Partially funded by a NASA Astrophysics Theory grant, find information about the group's past and future meetings.
A list of frequently asked questions with answers.
Hypothesis which attempts to explain the characteristics of quasi-stellar objects as optical illusions created by gravitational lensing and other phenomena.
Space science blog by Dr Ian O'Neill discussing astrophysics concepts in an informed yet informal way.
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.
Astronomical Institute, Ondrejov. Focuses on the research of cosmic objects in X-ray and gamma spectra region. General information, projects and workshops.
A free peer-reviewed online publication written by scholars from around the world.
A well know problem from astrophysics, Olber's paradox (Why is the night sky dark?), solved. As well as Newton's related Gravity paradox.
Nationally supported research centre. Find out about current research, upcoming seminars and job opportunities.
Beginner's guide to all the basic concepts of Astrophysics written by active scientists at Cambridge University, UK.
Text of the 1999 Oppenheimer lecture at UC Berkeley given by professor Freeman Dyson on the origin of life and other subjects.
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.
Teaching notes on celestial mechanics, classical mechanics, and stellar atmospheres.
E-Print archive since April of 1992.
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.
Search system for abstracts in astrophysics, planetary sciences and solar physics.
Information mostly on the fourth dimension and theoretical physics.
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