"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.'"
Study of structure and properties of galaxies, and the origins and evolution of the universe.
Introduction to astronomy: Basic astronomy concepts and terminology used in astronomy.
Size and Scale of the Universe: Understanding the enormity of the universe.
History of Astronomy: Knowing about the pioneers in the field of astronomy.
Observational Astronomy: Understanding how astronomers collect and analyze data.
Telescopes and Observatories: The construction and maintenance of the astronomical instruments.
Light and Electromagnetic Radiation: The role of light in astronomy.
Black Holes: Knowing the features, properties, and importance of black holes.
Cosmology: Study of the origin, evolution, and structure of the universe.
The Big Bang Theory: Understanding the cosmological model of the universe where the universe originated from an explosion.
Formation and Evolution of Galaxies: Understanding the processes that have shaped the universe.
Dark Matter: The study of a matter that lacks light or is not detectable through electromagnetic radiation.
Dark Energy: Studying the reasons for the accelerated expansion rate of the universe.
Life in the Universe: The possibility of life on other planets and extraterrestrial life.
Supernovae and other Stellar Explosions: Exploring how explosions and other events shape the galaxies and universe.
The Solar System: Understanding the structure of the solar system and its relationship with the galaxy.
Astrobiology: Branch of astronomy that studies the origin, evolution, distribution, and future of life in the universe.
Cosmogony: The study of the origin and evolution of the solar system and planets.
Time and Space in Astronomy: The role of time and space in astronomy.
Galactic Astronomy: The study of the formation, structure, and evolution of Galaxies.
Planetary Astronomy: The study of planets within the solar system.
Multi-Wavelength Astronomy: Studying celestial objects using multiple wavelengths in the electromagnetic spectrum.
Observational Techniques: Tools and techniques used to explore the cosmos.
Stellar Physics: The study of the properties and behavior of stars.
Radio Astronomy: Observations of radio waves from celestial objects.
The Galactic Center: Studying the center of the Milky Way galaxy.
Gravitational Waves: Understanding the phenomenon of gravitational waves and its importance in astrophysics.
N-body simulations: A numeric approach in modeling the dynamics of the cosmos, planet trajectories, and galaxies.
High Energy Astronomy: The study of high-energy phenomena in the universe, including black holes, active galaxies, gamma-ray bursts, and cosmic rays.
Star Clusters: The study of clusters of stars in the Milky Way.
Interstellar Medium: Understanding the material that fills the galactic and intergalactic space.
Elliptical galaxies: They are shaped like a sphere or an oval and are the most common type of galaxy in the universe. They are composed mostly of old stars and do not have much gas or dust.
Spiral galaxies: These galaxies have a central bulge and arms that wind out in a spiral pattern. They contain a mix of old and young stars and plenty of gas and dust to form new stars.
Barred spiral galaxies: They look like a spiral galaxy, but there is a bar-like structure in the center of the galaxy.
Irregular galaxies: These galaxies have an irregular shape and are often the result of collisions or interactions between other galaxies.
Lenticular galaxies: They are shaped like a lens and have a central bulge, but lack spiral arms. They consist of older stars and little gas and dust.
Dwarf galaxies: These are small galaxies, with fewer than a billion stars, and are usually found orbiting around larger galaxies.
Active galaxies: These are galaxies that emit light or radiation at extremely high levels due to the presence of supermassive black holes in their centers.
Radio galaxies: These emit large amounts of radio waves and other forms of electromagnetic radiation.
Seyfert galaxies: They emit bright, narrow spectral lines and are powered by a particularly active galactic nucleus.
Quasars: These are extremely bright and distant objects with properties similar to active galaxies.
Dark matter: It is a type of matter that is invisible to telescopes and cannot be directly detected, but has a gravitational effect on the motion of galaxies.
Dark energy: It is a hypothetical form of energy that is thought to be responsible for the accelerating expansion of 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."