What is Astronomy? Astronomy is the study of the Universe and everything in it, including planets, stars, galaxies, comets, and black holes.
It's full of huge distances, gigantic sizes, and long periods of time..
Astronomy helps us approach the big questions
It is concerned with the evolution, physics, chemistry, meteorology, and motion of celestial objects, as well as the formation and development of the universe.” One of the most important aspects of astronomy is its ability to help us understand our place in the universe..
Elementary Astronomy - Astronomy 1 (3 Units)
All areas of modern astronomy are discussed in this introductory course.
Major topics include the history of astronomy, the sun, moon and planets, stars, constellations and galaxies, telescopes and other instruments..
Those who study the celestial bodies and their movements are called astronomers..
This as bullets and very thin gold foil as a target. The results of this experiment showed that:
How do astronomers learn what elements are present in a given star? We observe a glowing cloud of gas in space with a spectroscope. We note that many of the familiar lines of hydrogen that we know on Earth seem to be in a different place.
