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  2. Astronomy - Wikipedia

    en.wikipedia.org/wiki/Astronomy

    Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics , physics , and chemistry in order to explain their origin and their overall evolution .

  3. Outline of space science - Wikipedia

    en.wikipedia.org/wiki/Outline_of_space_science

    The following outline is provided as an overview and topical guide to space science: Space science – field that encompasses all of the scientific disciplines that involve space exploration and study natural phenomena and physical bodies occurring in outer space, such as space medicine and astrobiology. [1] [2]

  4. Astrophysics - Wikipedia

    en.wikipedia.org/wiki/Astrophysics

    Astrophysics is a science that employs the methods and principles of physics and chemistry in the study of astronomical objects and phenomena. [1] [2] As one of the founders of the discipline, James Keeler, said, 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", [3] which is studied ...

  5. Branches of science - Wikipedia

    en.wikipedia.org/wiki/Branches_of_science

    Space science is the study of everything in outer space. [26] This has sometimes been called astronomy , but recently astronomy has come to be regarded as a division of broader space science, which has grown to include other related fields, [ 27 ] such as studying issues related to space travel and space exploration (including space medicine ...

  6. Cosmology - Wikipedia

    en.wikipedia.org/wiki/Cosmology

    In the science of astronomy, cosmology is concerned with the study of the chronology of the universe. Physical cosmology is the study of the observable universe 's origin, its large-scale structures and dynamics, and the ultimate fate of the universe , including the laws of science that govern these areas. [ 4 ]

  7. Planetary science - Wikipedia

    en.wikipedia.org/wiki/Planetary_science

    Analysis of planetary surfaces and surface features is a major component of planetary science. Planetary science (or more rarely, planetology) is the scientific study of planets (including Earth), celestial bodies (such as moons, asteroids, comets) and planetary systems (in particular those of the Solar System) and

  8. Glossary of astronomy - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_astronomy

    This glossary of astronomy is a list of definitions of terms and concepts relevant to astronomy and cosmology, their sub-disciplines, and related fields. Astronomy is concerned with the study of celestial objects and phenomena that originate outside the atmosphere of Earth. The field of astronomy features an extensive vocabulary and a ...

  9. Outline of astronomy - Wikipedia

    en.wikipedia.org/wiki/Outline_of_astronomy

    Astronomy can be described as all the following: An academic discipline: one with academic departments, curricula and degrees; national and international societies; and specialized journals. A scientific field (a branch of science) – widely recognized category of specialized expertise within science, and typically embodies it