Galaxy

Planet X: The Facts, The Myths (Popularity: )

examines the ancient and modern myths about a mysterious planet.
Category: Science\Anomalies and Alternative Science\Planet X

Satellite Tool Kit (Popularity: )

Analytical engine to calculate data and display multiple 2-D maps to visualize various time-dependent information ...
Category: Science\Technology\Software for Engineering\Aerospace Engineering

Gravity Explained (Popularity: )

An attempt to describe gravity as a force.
Category: Science\Physics\Alternative\Gravitation

Astro Portal - CalSKY (Popularity: )

The worldwide interactive online astronomical/space calendar and calculator - for friends of astronomy, as well ...
Category: Science\Astronomy\Calendars and Timekeeping

Murnaghan Instruments Corp. (Popularity: )

Telescopes by Coulter Optical and other manufacturers, Odyssey binoculars, and accessories. Also sells components and ...
Category: Science\Astronomy\Business\Telescopes, Binoculars and Accessories

Cartes du Ciel / Sky Charts (Popularity: )

Freeware allowing one to draw charts according to the data of 15 catalogs of stars ...
Category: Science\Astronomy\Software

Cradle-Ribeiro Observatory (Popularity: )

Observatory and equipment information, shows, images, and links.
Category: Science\Astronomy\Amateur

Space Today Online (Popularity: )

Comprehensive directory covering space from earth to the edge of the universe.

Category: Science\Aeronautics and Aerospace\Space

The Astro Pages (Popularity: )

Astrophotos, articles, discussion boards, telescope making, observer's logs, and calendar.
Category: Science\Astronomy\Amateur

Curious About Astronomy? Ask an Astronomer! (Popularity: )

scientists at Cornell University will answer your astronomy questions.
Category: Science\Astronomy\Ask an Expert

Gravit (Popularity: )

Gravit is a gravity simulator which runs under Linux, Windows and Mac OS X. It's ...
Category: Science\Astronomy\Software\Computational Astrophysics

AGE - Analysis Software for Land, Sea, Air, and Space (Popularity: )

Products, user community, support, services, training, and events.
Category: Science\Astronomy\Amateur\Satellites

Ask an Astronomer (Popularity: )

Questions answered by graduate students, including a question and answer archive, information on the solar ...
Category: Science\Astronomy\Amateur

Utah Skies (Popularity: )

A very comprehensive collection of information useful and interesting to amateur astronomers, especially those located ...
Category: Science\Astronomy\Associations

Astrozap Dew Shields (Popularity: )

Aluminum and flexible dew shields, caps and telescope covers for amateur telescopes. Many products are ...
Category: Science\Astronomy\Business\Telescopes, Binoculars and Accessories

The NGC/IC Project (Popularity: )

An attempt to correctly identify all the original objects, starting with the original discoverer's notes ...
Category: Science\Astronomy\Amateur\Deep Sky Observing

Ask the Astronomer (Popularity: )

an archive of 3001 questions about astronomy and space science.
Category: Science\Astronomy\Ask an Expert

The Cause of the Characteristics of Quasars (QSOs) (Popularity: )

Quasars (QSOs) are an illusion created by gravity lensing of photons from the opposite jet ...
Category: Science\Astronomy\Galaxies\Active Galactic Nuclei - Quasars

NASA/IPAC Extragalactic Database (NED) (Popularity: )

lists names and positions of extragalactic objects and provides links to data and published literature ...
Category: Science\Physics\Astrophysics\Galaxies

Arkansas Sky Observatory (Popularity: )

Comet and minor planet astrometry and photometry, including NEO's and PHA's.
Category: Science\Astronomy\Solar System\Asteroids, Comets and Meteors