A telescope
they use tools.
Astronomers use an auditory up on a hillside, and away from cities and pollution. So what i'm trying to say is that astronomers use an auditory to study the components of the universe.
Biology- the study of organic things and living organisms Chemistry- the study of chemicals and all things to do with chemicals Physics- the study of forces, radiation and the way they interact with eachother in the universe
Scientist use models to study things because models are sometimes easier to use than trying to study things in a natural environment.
No, the universe is infinite there will always be something to study as humans keep growing and rewriting history,
a magnifying glass.
Astronomy is the study of things that are not earth, and although we use particular occurrences and data recorded on earth to understand the laws of physics that effect phenomena that happens in our universe, it is a study not of earth but where earth exists, the solar system, our milky way galaxy, and our universe as a whole.
One who studies astronomy - which is basically the study of the Universe, of things which are mainly outside of planet Earth.
To search for Extra Terrestrial Life, Study the Universe, and a lot of other things.
Because it is SO Big. It is hard to go to each place & study it carefully, (or as easily as the things we study here on Earth.
Cosmic Background Radiation
to try to find the beginning of the universe..to study the stars...