Astronomers must learn physics, chemistry, mathematics and computer science...and how to use a telescope, astronomers must rely on their observation skills, for instance physics has helped astronomers to understand what makes spiral galaxies have spiral shapes, another is Spectroscopy which is the use of light from a distant object to work out the object is made of, When something is moving away from you, it stretches that waveform, while if it moves towards you it compresses the signal wavelength it emits. Spectroscopy also tells you a star's temperature, mass and surface gravity.
astronomers.
Mainly astronomers. But cosmologists and astrophysicists will also be interested in outer space.
Astronomers Believe That The Solar System Began As A Huge Cloud Of Dust And A Gas Called ''NEBULA''
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Astronomers.
Astronomers
Astronomers
People thought the earth was in the center of the solar system
astronomers
Many astronomers, historians, regular people, and scientisis know about the planets in our Solar system.
The scientists who studies planets or heavenly bodies are astronomers. They study by looking from the telescope at night and recording it. Afterwards, they give the information they've found.
astronomers