Topics: Science : Astronomy
Astronomy is the study physical and chemical properties of the stars, planets, galaxies and the universe, as we know it, today and in the past.
Amateur
This category lists sites specifically for the non-professional areas of astronomy.
Amateur Contributions to Science,
Amateur Telescope Making,
Astrophotography and CCD Imaging,
Beginners,
Binocular Astronomy,
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Associations
Astronomical associations and societies.
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Business
This category includes sites that offer scientific instruments, equipment or service for use by professional astronomers, researchers, teachers for classroom, or serious star-gazers.
Books and Magazines,
Domes and Observatories,
Educational Resources,
Expeditions,
Meteorites,
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Calendars and Timekeeping
Sundials,
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Cosmology
Cosmology is the scientific study of the structure and origin of the universe as a whole.
Articles,
Cosmic Background Radiation,
Cosmological Constant and Dark Energy,
Courses and Tutorials,
Dark Matter,
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Data Archives
Solar System,
Stellar and Astrometric,
Supernovae and Remnants,
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Eclipses, Occultations and Transits
Eclipses,
Occultations,
Transits,
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Education
Science/Astronomy/Education is for educational web sites of interest to educators, parents, students, and professionals emphasizing the teaching or learning of various aspects of astronomy or astrophysics.The best sites will try to teach or instruct about astronomy or astrophysics, although clear, easy-to-follow explanations of topics are useful as well.
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Extrasolar Planets
The search for extrasolar planets is one of the most popular and rapidly developing topics in astronomy today.
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Extraterrestrial Life
The scientific search for life outside the earth. Sites containing material which cannot be scientifically explained, such as ufology, are listed within the category "Society: Paranormal".
Exobiology,
Fermi's Paradox,
Panspermia,
SETI,
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Galaxies
Active Galactic Nuclei - Quasars,
Milky Way,
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History
Astronomy is the scientific study of objects and phenomena beyond the earth's atmosphere by means other than visiting them or sending probes.
Eclipses, Occultations and Transits,
Instruments,
Observatories,
People,
Solar System,
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Institutions
This category lists sites (i.e. research organizations, academic departments, observatories and planetaria, scientific societies and associations, professional societies, museums, and government science establishments) that promote the science of astronomy.
Academic Departments,
Observatories,
Planetariums,
Research Centers,
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Interstellar Medium
Emission Nebulae,
Planetary Nebulae,
Reflection Nebulae,
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Popular Topics
Shortcuts to some popular, frequently requested topics in Astronomy and Space that are burried inside the ODP directory structure and might be hard to pin down.
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Publications
Books,
Journals,
Magazines,
Newsletters,
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Software
Software related to astronomy. This includes desktop planetarium and sky charting software, astronomy databases and observing utilities, simulation software, image processing and data analysis, education and multimedia software, and software reviews.
Computational Astrophysics,
Desktop Planetarium and Charting,
Education and Multimedia,
Image Processing and Data Analysis,
Space Simulation,
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Solar System
The Solar System currently consists of the Sun, nine planets, and the many asteroids and comets that also orbit the Sun.
Asteroid Belt,
Conferences,
Dwarf Planets,
Kuiper Belt,
Oort Cloud,
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Stars
Stars are self-luminous gaseous spheroidal celestial bodies of great mass which produce energy by means of nuclear fusion.
Binary Stars,
Dwarf Stars,
Names,
Neutron Stars,
Novae and Supernovae,
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Star Clusters
Globular Clusters,
Open Clusters,
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