Language Dictionaries
Encylopedia > Astronomy


Picture of Galaxy
Image courtesy Nasa.

Galaxies exist throughout the Universe. They were made originally from the soup of matter that existed over 15 billion years ago. That soup is most likely to have been virtually all Hydrogen and through gravity the hydrogen atoms started to come together in ever more large groupings until real physical properties starting occuring. Heat, mass, gravity.

If enough hydrogen is available in a body eventually fusion occurs and this is how the Stars formed with the remaining gases etc... forming the planets. If you then think about the size of space and all the stars being formed and the forces of nature happening on larger and larger scales you start to get the idea that a galaxy had to come into being as all the stars in it are bonded together through the invisible force of gravity. The spiral structure of most galaxies is the same principle of our own Solar System. Gravity and magnetism creates the spin of objects around another that we see right down to the atomic scale.

The different types of galaxies that have been classified are elliptical, spiral, barred spiral and irregular.

Galaxy in other languages:-

French:f galaxie
German:f galaxis
Greek:m γαλαξίας
Italian:f galassia
Nederlands:n melkwegstelsel
Norwegian:m galakse
Polish:f galakyka
Portuguese:f galáxia
Spanish:f galaxia
Turkish:galaksi, gökada