Astronomy compels the soul to look upwards and leads us from this world to another.


Learn the basics of astronomy with historical background and an introduction to the basic astronomy concepts, details about planets, satellites, asteroids, comets and meteors. Also learn the history of Astronomy from its origins in the religious, mythological, and astrological practices of prehistory through to modern astronomy.


Could Spinning Spacecraft Provide Artificial Gravity?
20th April 2013Astronomy
Spinning space stations are a staple of Sci-Fi, from Babylon 5 to Space Station 1 in the film 2001: A Space Odyssey. Inhabitants live in simulated artificial gravity, but it is not the same as that experienced on Earth. Can spinning spacecraft provide artificial gravity?
The Messier Catalogue
28th March 2013Astronomy
The Messier Objects are a set of astronomical objects catalogued by Charles Messier in his catalogue of Nebulae and Star Clusters first published in 1774. The original motivation behind the catalogue was that Messier was a comet hunter, and was frustrated by objects which resembled but were not comets. He, therefore, compiled a list of these objects.
The Caldwell Catalogue
28th March 2013Astronomy
Sir Patrick Caldwell-Moore has made a catalogue of beautiful and interesting objects you should observe, whereas Charles Messier made a catalogue of faint fuzzy objects to be avoided when searching for comets.
Kuiper Belt
28th March 2013Astronomy
The Kuiper belt is an area of the solar system extending from the orbit of Neptune (at 30 AU) to 50 AU from the Sun. The objects within the Kuiper Belt together with the members of the scattered disk extending beyond are collectively referred to as trans-Neptunian objects.
Glossary of Astronomy & Photographic Terms
28th March 2013Astronomy
Use this Astronomical Terms Glossary to look up the many technical terms and definitions that you may be unfamiliar with in astronomy.
The Lagrange Points
9th February 2011Astronomy
Lagrange Points are five special points where an object can orbit at a fixed distance from two larger mass such that the gravitational pull precisely equals the centripetal force.
Is there a Monster at the Centre of our Galaxy?
9th November 2010Astronomy
Scientists believe that at the centre of the Milky Way there lies an unknown compact entity believed to be a supermassive black hole.
Introduction to Astronomy
8th November 2010Astronomy
Astronomy is an endlessly fascinating field, the oldest of the natural sciences, and one of the few areas of science that amateurs can assist the professionals and contribute to science.