Page 106 - Srednje skole - radovi

S T A R S A N D G A L A X I E S
Z V E Z D E I G A L A K S I J E

Author

Milica Vlajković, III grade, First economy school (Prva ekonomska škola), Belgrade Mentor

Tatjana Glogovac, content writer and english language teacher

ABSTRACT

For thousands of years people have watched the night sky, naming and observing the objects
and throughout the years the way the universe is viewed has drastically changed. Human kind seeks to
understand how the universe works and their place in it.In order to understand how the universe work,
its initial state and how it became the universe we know, scientists must first understand stars, galaxies
and their evolutions. The purpose of this work is to understand at least a part of how stars and galaxies
work.

Stars are astronomical objects that represent the fundamental part of galaxies and universe
itself. The history, dynamic and evolution of the galaxy can be understood through the age, distribution
and composition of its stars. There are hundreds of billions of galaxies in the universe and they are quite
mysterious for scientists. The Milky Way belongs to the Local group of galaxies along with the
Andromeda galaxy, our nearest galaxy, and it's predicted that they will collide in about 4 billion years,
but is rather unknown what will happen then. Understanding galaxies gives knowledge for understanding
the universe itself, black holes and the origin of the universe.

Key words: stars, galaxies, universe

APSTRAKT

Hiljadama godina ljudi su posmatrani nodno nebo i objekte koje vide na njemu i davali im imena i
tokom godina koje su prošle način na koji vidimo univerzum je se menjao. Ljudi pokušavaju da razumeju
način na koji univerzum funkcioniše i njihovo mesto u njemu. U cilju razumevanja univerzuma, njegovog
početnog stanja i kako je postao univerzum za koji mi znamo, naučnici prvo moraju razumeti zvezde,
galaksije i njihove evolucije. Cilj rada je da se razume makar deo načina na koji zvezde i galaksije
funkcionišu.

Zvezde su nebeska tela koja predstavljaju osnovnu komponentu galaksija i celokupnog
univerzuma. Istorija, dinamika i evolucija galaksija može biti shvadena kroz starost, distribuciju i sastav
njihovih zvezda. U svemiru postoje hiljade milijardi galaksija i one predstavljaju misteriju za naučnike.
Mlečni put pripada Lokalnoj grupi galaksija zajedno sa galaksijom Andromeda, našom najbližom
galaksijom. Predviđeno je da de se one sudariti za oko 4 milijarde godina, ali je nepoznato šta de se tada
desiti. Razumevanje galaksija, a samim tim i zvezda, daje osnovu za razumevanje samog univerzuma,
njegovog nastanka i crnih rupa.

Ključne reči: zvezde, galaksije, kosmos