A retired physicist surveys the entire extent of the universe touching upon phenomenon from the largest to the smallest size and covering the entire cosmic interval from past to present.
Contains 3D maps of the universe zooming out from the nearest stars to the scale of the galaxy and out to the surrounding superclusters and finally to the scale of the known universe.
Computes the position, brightness, and other observablecharacteristics of celestial bodies, as well as the circumstances of astronomical phenomena. Includes information on calendars and related topics.
List of links for those, who want to examine theories that are on the fringe of accepted scientific thought that are related connected to astronomy.A few examples are astrology, UFO's, the "Face" on Mars, and ancient astronaut theory.
Explores the latest research in astronomy, with overviews of planets and deep-space issues, oberving tips for constellations and what can be seen in the sky tonight.