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Astrophysics

The Observable Universe_020124A
[The Observable Universe - Big Think]
 

- Overview

Astrophysics is the study of astronomical objects and phenomena using physics and chemistry principles and methods. It's a broad subject that includes the study of the universe, planets, stars, galaxies, and more. Astrophysicists use observations, calculations, and simulations to understand the properties and behavior of celestial bodies and the cosmic phenomena that shape the universe. They examine emissions from these objects across the electromagnetic spectrum, and study properties like temperature, density, luminosity, and chemical composition. 

Astrophysics encompasses many areas of study, including:
  • Cosmology: The study of the universe's origin and evolution
  • Space physics: The study of rarefied plasma in the solar system
  • Astrophysics theory: The study of phenomena like black holes, neutron stars, exoplanets, and dark matter
 
Astrophysicists use concepts and methods from many areas of physics, including:
  • Classical mechanics
  • Electromagnetism
  • Statistical mechanics
  • Thermodynamics
  • Quantum mechanics
  • Relativity
  • Nuclear and particle physics
  • Atomic and molecular physics

To become an astrophysicist, you'll need a Ph.D. in either physics or astronomy. Some recommend starting with a bachelor's degree in physics as an undergraduate. Astrophysics is considered one of the most difficult degrees because of its complex and vast subject matter.

Please refer to the following for more information:



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