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Course information comes from the public UCLA General Catalog. Requisites are read from UCLA’s published wording and can be incomplete or out of date — check the official catalog listing and your department adviser before you enroll.

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PHYSICS 128 · PHYS 128Cosmology and Particle Astrophysics

Physics · 4 units · Undergraduate upper division (100-199)

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Introduction to cosmology and high-energy particle astrophysics, based on latest developments of both experiment and theory. Special emphasis on unified picture of universe that emerges from particle physics, astronomy, and cosmology. Extensive discussion of unsolved problems and future prospects to help students determine their opportunities in future.

Letter grading.

When it runs

  • Spring 2026
  • Spring 2027

Scheduled, not typical — from UCLA’s Schedule of Classes, which publishes Fall 2025 through Spring 2027 and nothing before it.

Requisites

Official UCLA wording

Requisites: courses 115A, 115B, 126.

BruinTree reads · Prerequisite

confidence 1.00 · from text
all of
  • PHYSICS 115A
  • PHYSICS 115B
  • PHYSICS 126

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About PHYSICS 128. We read UCLA’s requisite wording by machine, and it gets things wrong.

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Requires

Everything that has to come before this course, not just the courses named in the requisite above.

PHYSICS 128

  • PHYSICS 115AQuantum Mechanics
    • PHYSICS 17Modern Physics
      • PHYSICS 1APhysics for Scientists and Engineers: Mechanicsanother path to it
      • PHYSICS 1AHPhysics for Scientists and Engineers: Mechanics (Honors)another path to it
      • PHYSICS 1BPhysics for Scientists and Engineers: Oscillations, Waves, Electric and Magnetic Fieldsanother path to it
    • PHYSICS 32Mathematical Methods
      • PHYSICS 1APhysics for Scientists and Engineers: Mechanicsanother path to it
      • PHYSICS 1AHPhysics for Scientists and Engineers: Mechanics (Honors)another path to it
      • MATH 32ACalculus of Several Variablesanother path to it
    • PHYSICS 105AAnalytic Mechanics
      • PHYSICS 32Mathematical Methodsanother path to it
      • MATH 33BDifferential Equations
  • PHYSICS 115BQuantum Mechanics
    • PHYSICS 105BAnalytic Mechanics
      • PHYSICS 105AAnalytic Mechanicsanother path to it
    • PHYSICS 115AQuantum Mechanicsanother path to it
  • PHYSICS 126Elementary Particle Physics1 more beneath
    • PHYSICS 1APhysics for Scientists and Engineers: Mechanics
      • MATH 31ADifferential and Integral Calculus1 more beneath
      • MATH 31BIntegration and Infinite Seriesanother path to it
      • MATH 32ACalculus of Several Variablesanother path to it
    • PHYSICS 1AHPhysics for Scientists and Engineers: Mechanics (Honors)
      • MATH 31ADifferential and Integral Calculusanother path to it
      • MATH 31BIntegration and Infinite Seriesanother path to it
      • MATH 32ACalculus of Several Variablesanother path to it
    • MATH 32BCalculus of Several Variables
      • MATH 31BIntegration and Infinite Series
      • MATH 32ACalculus of Several Variables
    • PHYSICS 1BPhysics for Scientists and Engineers: Oscillations, Waves, Electric and Magnetic Fields
      • PHYSICS 1APhysics for Scientists and Engineers: Mechanicsanother path to it
      • MATH 31BIntegration and Infinite Seriesanother path to it
      • MATH 32ACalculus of Several Variablesanother path to it
    • PHYSICS 1BHPhysics for Scientists and Engineers: Oscillations, Waves, Electric and Magnetic Fields (Honors)
      • PHYSICS 1APhysics for Scientists and Engineers: Mechanicsanother path to it
      • PHYSICS 1AHPhysics for Scientists and Engineers: Mechanics (Honors)another path to it
      • MATH 31BIntegration and Infinite Seriesanother path to it
    • MATH 33ALinear Algebra and Applications
      • MATH 3BCalculus for Life Sciences Students1 more beneath
      • MATH 31BIntegration and Infinite Seriesanother path to it
      • MATH 32ACalculus of Several Variablesanother path to it
    • PHYSICS 1CPhysics for Scientists and Engineers: Electrodynamics, Optics, and Special Relativity
      • PHYSICS 1APhysics for Scientists and Engineers: Mechanicsanother path to it
      • PHYSICS 1BPhysics for Scientists and Engineers: Oscillations, Waves, Electric and Magnetic Fieldsanother path to it
      • MATH 32ACalculus of Several Variablesanother path to it
    • PHYSICS 1CHPhysics for Scientists and Engineers: Electrodynamics, Optics, and Special Relativity (Honors)
      • PHYSICS 1APhysics for Scientists and Engineers: Mechanicsanother path to it
      • PHYSICS 1AHPhysics for Scientists and Engineers: Mechanics (Honors)another path to it
      • MATH 32ACalculus of Several Variablesanother path to it

3 direct requisites. Showing 48 courses over 3 levels; the branches marked with a count carry on past it. Every course here opens its own tree.

Unlocks

What this course is a requisite for, and what those courses lead to in turn.

No course in the catalog lists this as a requisite.