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Astrophysics studies the properties and interactions of cosmological objects based on physical laws. It is divided into observational and theoretical astrophysics, and overlaps with particle physics. Astrophysicists study phenomena such as black holes, galaxies, and the Big Bang. They provide insights into the age, size, and structure of the universe.
Astrophysics is a branch of astronomy that analyzes the properties and interactions of cosmological objects based on known physical laws. The term is slightly misleading, as anyone involved in astronomy must also be proficient in physics. It can be said that this field is very similar to the fields of astronomy and cosmology.
The two main divisions in this field are observational and theoretical astrophysics. There is no such thing as experimental astrophysics because the scales and objects observed are too large or too far away to be experienced with modern technology. Because light takes time to reach us on Earth, the farthest regions of the universe are actually windows into the ancient universe, when the universe was much denser and more energetic. Because this field sometimes deals with theories of the early, compact universe, it can overlap strongly with particle physics, which provides predictions about how matter would behave in the ancient universe.
Astrophysicists are known to study phenomena such as black holes, galaxies, superclusters, neutron stars, quasars, Big Bang, dark matter and energy, cosmic strings, stellar evolution, cosmic microwave background radiation and many others. The cosmos is a good arena for studying pure physics because on such large scales, the particular type of element that makes up objects becomes less significant and more general variables, such as mass and velocity, take the lead. Sometimes, this field is called “the study of the very large and the very small.”
Many important insights into humanity’s understanding of the universe have been provided by astrophysicists. They predicted the probable age of the universe, the size of the observable universe, how long the Sun will last before it runs out of its nuclear fuel, the spread of black holes and other exotic celestial bodies, what the universe looked like billions of years ago , the average temperature of interstellar or intergalactic space, the shapes of galaxies and the way matter is distributed in the observable universe. Astrophysics continues to evolve and produce new insights into the structure of the universe.
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