To know more about the universe, astronomers apply the principles of physics and mathematics. They collect the information about the characteristics of planets,stars, moons and other objects with the help of telescopes and computer programs.Astronomers also have to develop and test scientific theories, analyzing data and writing their research proposals. They also compose scientific papers and present their interpretation to others who are in the same field.
- Nearly work in the office. - Usually work regular business hours. However, those who are deeply involved in research may work longer hours. - Must be accurate and thorough in their work. - Sometimes have to repeat the same mental tasks. - Usually have the freedom to make decisions and set their daily tasks and goals independently. - Sometimes must meet weekly and monthly deadlines.
In seventeenth century, Galileo Galilei played a vital role in the scientific revolution. He contributes to observational astronomy which includes the four largest satellites of Jupiter, confirmation of the phases of Venus , and the observation and analysis of sunspots. He also worked to invent an improved military compass and other instruments.
Einstein proposed in the early 20th century, German physicist Albert Einstein (1879-1955) became one of the most famous scientists ever after proposing a new way of looking at the universe that went beyond current understanding. Einstein suggested that the laws of physics are the same throughout the universe that the speed of light in a vacuum is constant, and that space and time are linked in an entity known as space-time, which is distorted by gravity.