Astronomy Fundamentals

Important Disciplinesin Astronomy

What is astrophysics?

Astrophysics is the application of the science of physics to the universe and everything in it. The most important way astronomers gain information about the universe is by gathering and interpreting light energy from other parts of the universe (and even the universe itself). Since physics is the most relevant science in the study of space, time, light, and objects that produce or interact with light, the majority of astronomy today is conducted using physics.


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