Articles to help you discover the wonders of the Universe

Astronomy

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.

08Nov2010
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.
Introduction to Astronomy

 

05Oct2010
Quasars (QUAsi-Stellar Radio Source) is a very energetic and distant galaxy with an active galactic nucleus. They are the most luminous objects in the universe.
Quasars

 

05Oct2010
Pulsars are highly magnetised, rotating neutron stars that emit a beam of electromagnetic radiation. The radiation can only be observed when the beam of emission is pointing towards the Earth. This is called the lighthouse effect and gives rise to the pulsed nature that gives pulsars their name.
Pulsars

 

05Oct2010
Supernovae are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading from view over several weeks or months.
Supernova and Supernovae

 

03Jun2010
Billions of galaxies populate our universe, each one a vast group of stars that exist together in space. We live in one of these galaxies called the Milky Way, named after the path of milky light that it stars make across the Earth's sky.
What is a Galaxy?

 

03Jun2010
Binoculars play a big part in astronomy for beginners and experienced amateurs alike. They are generally cheaper and much easier to use than telescopes and offer a broad range of what's on offer in the night's sky.
Binocular Astronomy

 

02Jun2010
The Danjon Scale of Lunar Eclipse Brightness is a five-point scale useful for measuring the appearance and luminosity of the Moon during a lunar eclipse. It was proposed by André-Louis Danjon when he was measuring the Earthshine on the Moon.
The Danjon Scale

 

08May2009
A Nebula (or Nebulae plural) is a mixture of interstellar dust, hydrogen gas, helium gas and plasma. The name comes from the Latin meaning cloud.
Types of Nebula and Nebulae

 

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