Astronomy is a unique topic because it discusses a wide range of topics – why so many people find it interesting! Since it is about universal physics and how everything in it works, astronomers need to have a good knowledge ...

Astronomy studies everything in the universe outside the Earth’s atmosphere. This includes objects we see with the naked eye, such as the sun, moon, planets and stars. It also includes objects that we only see with telescopes or other instruments, ...

Astronomy is the study of extraterrestrial objects and phenomena, while cosmology is the branch of astronomy that studies the origin of the universe and its evolution. For example, the big bang, the origin of the chemical elements, and the cosmic ...

How have astronomical observations benefited ancient societies? … Tell the time of day and year, follow the cycles of the Moon, observe the planets and stars. (Many ancient structures have aided in astronomical observations.) What is an interferometer used for ...