"Astrophysics 'seeks to ascertain the nature of the heavenly bodies, rather than their positions or motions in space–what they are, rather than where they are.'"
The study of the behavior and properties of matter and energy on a cosmic scale. This topic covers topics like stellar evolution, black holes, and the nature of the universe itself.
Astronomy: The study of celestial bodies and their properties, such as their distance, size, motion, and composition.
Cosmology: The study of the structure, origins, and evolution of the universe, including the Big Bang theory, cosmic inflation, and the expansion of the universe.
Classical Mechanics: The study of motion and forces in macroscopic objects, such as planets and stars.
Electromagnetism: The study of electric and magnetic fields, and their interactions with matter, including light.
Quantum Mechanics: The study of the behavior of matter and energy on a microscopic scale, including the properties of subatomic particles.
General Relativity: The study of gravity and its effects on the curvature of spacetime and the motion of objects in it.
Nuclear Physics: The study of the structure and behavior of atomic nuclei, including nuclear reactions and the processes that power stars.
Stellar Evolution: The study of the life cycles of stars, including the processes that lead to their formation, their evolution, and their eventual demise.
Exoplanetology: The study of planets and planetary systems outside our solar system, including their formation, composition, and habitability.
Astrochemistry: The study of the chemical processes that occur in space, including the formation and behavior of molecules in space.
Astrobiology: The study of the origins, distribution, and evolution of life in the universe, including the search for extraterrestrial life.
Astrophysical Radiative Transfer: The study of how radiation moves through space and interacts with matter, including the absorption, emission, and scattering of electromagnetic radiation.
High Energy Astrophysics: The study of extreme environments in space, such as black holes, neutron stars, and supernovae.
Observational Astronomy: The use of telescopes and other instruments to observe and measure the properties of celestial objects, including their position, brightness, and spectrum.
Planetary Science: The study of planets, moons, asteroids, and other objects in our solar system, including their origin, structure, and evolution.
Stellar Astrophysics: This branch of astrophysics deals with the study of stars, their formation, evolution and death.
Galactic Astrophysics: This area of astrophysics focuses on the study of the structure and dynamics of galaxies, as well as their formation and evolution.
Cosmology: Cosmology is concerned with the study of the large-scale structure and evolution of the universe, including the origin and evolution of the universe as a whole.
High-Energy Astrophysics: This branch of astrophysics focuses on the study of high-energy phenomena such as supernova explosions, black holes, and active galactic nuclei.
Interstellar Medium and Star Formation: This area of astrophysics deals with the study of the interstellar medium, including the gas and dust that fills the space between stars, as well as the processes of star formation.
Exoplanets: Exoplanet astrophysics is concerned with the study of planets outside our solar system, including their formation, structure, and potential habitability.
Plasma Astrophysics: Plasma astrophysics is the study of the behavior of ionized gases in space, which includes the study of the Sun and other stars, as well as the dynamics of interstellar and intergalactic plasma.
Gravitational Waves: Gravitational wave astrophysics is concerned with the detection and study of the ripples in spacetime caused by violent astrophysical events, such as black hole mergers and supernova explosions.
Astrochemistry: Astrochemistry is concerned with the study of the chemistry of the universe, including the formation and evolution of molecules in space, and their role in the origin of life.
Astrobiology: Astrobiology is the study of the origin, evolution, distribution, and future of life in the universe.
"Among the subjects studied are the Sun (solar physics), other stars, galaxies, extrasolar planets, the interstellar medium, and the cosmic microwave background."
"Astrophysicists apply concepts and methods from many disciplines of physics, including classical mechanics, electromagnetism, statistical mechanics, thermodynamics, quantum mechanics, relativity, nuclear and particle physics, and atomic and molecular physics."
"Properties examined include luminosity, density, temperature, and chemical composition."
"Some areas of study for astrophysicists include their attempts to determine the properties of dark matter, dark energy, black holes, and other celestial bodies; and the origin and ultimate fate of the universe."
"In practice, modern astronomical research often involves a substantial amount of work in the realms of theoretical and observational physics."
"Topics also studied by theoretical astrophysicists include Solar System formation and evolution; stellar dynamics and evolution; galaxy formation and evolution; magnetohydrodynamics; large-scale structure of matter in the universe; origin of cosmic rays; general relativity, special relativity, quantum and physical cosmology, including string cosmology and astroparticle physics."
"Among the subjects studied are the Sun (solar physics), other stars, galaxies, extrasolar planets, the interstellar medium, and the cosmic microwave background."
"Emissions from these objects are examined across all parts of the electromagnetic spectrum."
"Astrophysics 'seeks to ascertain the nature of the heavenly bodies, rather than their positions or motions in space–what they are, rather than where they are.'"
"Some areas of study for astrophysicists include their attempts to determine the properties of dark matter, dark energy, black holes, and other celestial bodies."
"Properties examined include luminosity, density, temperature, and chemical composition."
"Astrophysicists apply concepts and methods from many disciplines of physics, including classical mechanics, electromagnetism, statistical mechanics, thermodynamics, quantum mechanics, relativity, nuclear and particle physics, and atomic and molecular physics."
"Topics also studied by theoretical astrophysicists include Solar System formation and evolution; stellar dynamics and evolution; galaxy formation and evolution; magnetohydrodynamics; large-scale structure of matter in the universe; origin of cosmic rays; general relativity, special relativity, quantum and physical cosmology, including string cosmology and astroparticle physics."
"Emissions from these objects are examined across all parts of the electromagnetic spectrum."
"Because astrophysics is a very broad subject, astrophysicists apply concepts and methods from many disciplines of physics."
"Some areas of study for astrophysicists include their attempts to determine the properties of dark matter, dark energy, black holes, and other celestial bodies; and the origin and ultimate fate of the universe."
"In practice, modern astronomical research often involves a substantial amount of work in the realms of theoretical and observational physics."
"Astrophysics 'seeks to ascertain the nature of the heavenly bodies, rather than their positions or motions in space–what they are, rather than where they are.'"
"Topics also studied by theoretical astrophysicists include Solar System formation and evolution; stellar dynamics and evolution; galaxy formation and evolution; magnetohydrodynamics; large-scale structure of matter in the universe; origin of cosmic rays; general relativity, special relativity, quantum and physical cosmology, including string cosmology and astroparticle physics."