"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 physical processes that occur in space.
Newton's Laws of Motion: These laws describe the motions of objects in space, including how they interact with each other.
Kepler's Laws of Planetary Motion: These laws describe how planets move in relation to each other and the sun.
General Relativity: This theory explains the nature of gravity as a curvature in space-time.
Black Holes: These are areas where gravity is so strong that nothing, including light, can escape.
Binary Stars: These are stars that orbit around each other, and the study of these systems can provide information about the properties of stars.
Supernovae: These are the explosive deaths of stars, which release enormous amounts of energy.
Stellar Evolution: This refers to the process by which stars form, age, and die.
Galaxy Formation: This refers to the process by which galaxies form and evolve over time.
Dark Matter: This is the unseen matter in the universe that is thought to affect the motions of galaxies.
Dark Energy: This is the unknown force driving the expansion of the universe.
Cosmic Microwave Background Radiation: This is the leftover radiation from the Big Bang, and provides insight into the early universe.
Gravitational Waves: These are ripples in space-time caused by the movement of massive objects, and were recently detected for the first time.
Neutron Stars: These are incredibly dense stars that result from supernovae, and are important for understanding nuclear physics.
General Astrophysics Principles: This includes concepts like the properties of light and spectral analysis, which are fundamental to understanding various astrophysical phenomena.
Planetary Science: This includes the study of planets, asteroids, comets, and other bodies in our solar system, as well as their formation and evolution over time.
Stellar astrophysics: The study of stars, their formation, evolution, and their final stages.
Galaxial astrophysics: The study of galaxies, their formation, evolution, structure, and distribution.
Cosmology: The study of the origins, evolution, structure, and fate of the universe as a whole.
High-energy astrophysics: The study of high-energy cosmic particles, including gamma rays, X-rays, and other forms of radiation.
Black holes: The study of the properties and behavior of black holes, including how they form and how they interact with matter.
Gravitational waves: The study of ripples in space-time caused by the movement of massive objects such as black holes and neutron stars.
Planetary science: The study of the structure, composition, and evolution of planets and other celestial bodies within the solar system.
Interstellar medium: The study of the matter and energy distributed throughout interstellar space, including gas, dust, and cosmic rays.
Exoplanets: The study of planets outside our solar system, including their formation, composition, and habitability.
Astrobiology: The study of the origins, evolution, and distribution 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."