"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 properties and behavior of the universe, including galaxies, stars, planets, and other celestial bodies.
Celestial Mechanics: The study of the motion of celestial objects such as planets, moons, asteroids, comets, and stars.
Stellar Physics: The study of the physical properties, characteristics, and evolution of stars.
Galaxies and Clusters: The study of the properties, dynamics, and evolution of galaxies and clusters of galaxies, including the nature of dark matter.
Cosmology: The study of the large-scale structure, history, and evolution of the universe, including the Big Bang theory and cosmic inflation.
Relativity and Gravitation: The study of the effects of gravity on matter and energy, including the theory of special and general relativity.
Quantum Mechanics: The study of the behavior of matter and energy at the atomic and subatomic scale, including quantum field theory and particle physics.
Radiation and Spectroscopy: The study of electromagnetic radiation, including the use of instruments such as telescopes, spectroscopes, and imaging detectors.
Observational Astronomy: The techniques and methods used to study celestial objects, including the use of telescopes, satellites, and other instrumentation.
Exoplanets: The study of planets outside the solar system and the search for habitable environments and signs of life.
Astrobiology: The study of the origin, evolution, and distribution of life in the universe, including the search for extraterrestrial life.
High Energy Astrophysics: The study of energetic phenomena in the universe, including black holes, supernovae, gamma-ray bursts, and cosmic rays.
Neutrino Astronomy: The use of neutrinos to study astrophysical phenomena, including the properties of dark matter and the nature of the early universe.
Computational Astrophysics: The use of computer simulations and modeling to study complex astrophysical systems, including galaxy formation and stellar evolution.
Planetary Science: The study of the physical and chemical properties of planets, moons, asteroids, comets, and other objects in the solar system.
Astrochemistry: The study of the chemistry of the universe, including the formation of elements and molecules in stars and interstellar space.
Gravitational Wave Astronomy: The use of gravitational waves to study the properties of the universe, including the detection and study of merging black holes and neutron stars.
Astrostatistics: The use of statistical methods to analyze and interpret astronomical data, including the development of algorithms and software for data analysis.
Dark Energy and Dark Matter: The study of the mysterious components of the universe that do not emit or interact with light, but are detected indirectly through their gravitational effects.
Lunar Science: The study of the Moon, including its origin, history, and exploration.
Astrophysics: It is the study of physics and other phenomena occurring in the universe. It involves the study of stars, galaxies, planets, and other celestial bodies.
Cosmology: It is the study of the origin, evolution, and ultimate fate of the universe. It attempts to answer questions such as the age of the universe, the shape of the universe, and the ultimate fate of the universe.
Galactic Astrophysics: It involves the study of the dynamics, structure, and evolution of galaxies.
Stellar Astrophysics: It involves the study of stars, their properties, and their structure.
High-Energy Astrophysics: It involves the study of the high-energy phenomena that occur in the universe. It involves the study of black holes, neutron stars, gamma-ray bursts, and other high-energy phenomena.
Planetary Astrophysics: It involves the study of planets, their properties, and their formation.
Exoplanetary Astrophysics: It involves the study of planets that orbit other stars, their properties, and their formation.
Interstellar Astrophysics: It involves the study of the gas, dust, and other interstellar matter that exists between stars.
Particle Astrophysics: It involves the study of the behavior of subatomic particles, their interactions, and their relationship to the universe.
Observational Cosmology: It involves the use of telescopes and other instruments to study the universe and its structure.
Theoretical Cosmology: It involves the development of mathematical theories to explain the structure and behavior of the universe.
Gravitational Astrophysics: It involves the study of the properties of gravity and its relationship to the universe.
Computational Astrophysics: It involves the use of supercomputers and other computational tools to simulate and model the behavior of astronomical objects and phenomena.
Astrochemistry: It involves the study of the chemistry of astronomical objects and their role 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."