Certainly; for example, the Big Bang theory, Kepler's Laws.
Because they both emit regular pulses of electromagnetic radiation
You might use the Boyle's Law and Charles' Law when you are dealing with a kinetic theory question.
the astronomers use Absolute magnitude
Astronomers use infrared light to map the dust in between stars.
They use the bathroom like anyone else in a house or building. They use the restroom, they are astronomers, not astronauts.
Real scientists do not "gather evidence in support of" any theory. The technical term for that kind of thing is "cherry-picking". Real scientists build a theory to explain the evidence that they have already gathered, and then test the theory to see whether it holds water. The easiest, fastest way to make sure that you are regarded as a wingnut by real scientists is to adopt or invent a theory, and then spend your time trying to prove it.
Early astronomers observed that the sun appeared to move across the sky in a consistent pattern, rising in the east and setting in the west. This observation was used to support the geocentric theory, which posited that the Earth was at the center of the universe and that all celestial bodies revolved around it.
Astronomers can use their eyes to study the stars. They can also use various telescopes that either refract, reflect, and detect exotic formations.
telescope
Yes
Astronomers conclude that objects in the universe are moving away from Earth due to the observed redshift in their spectra. This supports the idea of an expanding universe, as described by the Big Bang theory. The amount of redshift is proportional to the distance of the object, allowing astronomers to estimate the speed at which galaxies are moving away from us.
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.