Stars and Galaxies

PHY2106.01
Course System Home Terms Spring 2026 Stars and Galaxies

Course Description

Summary

All but a handful of the objects you see in the night sky are stars in our Galaxy, the Milky Way. Although we know about these stars only from studying their light, we know today that they are not just points of light, but large, gravitationally‐bound balls of plasma governed by the laws of physics. Stars, together with dust, gas, and dark matter, are found in larger structures – galaxies. In turn, galaxies, are located in even larger structures called galaxy groups and galaxy clusters. In this course, we will study the formation and evolution of stars and galaxies and, through this study, gain insight into how the large scale structure of the universe has changed since its formation nearly 14 billion years ago.

Learning Outcomes

  • A quantitative understanding of the physics of light, stars, and galaxies
  • An understanding of how to work through quantitative and qualitative problems
  • An understanding and appreciation for the scale of astrophysical systems and processes

Instructor

  • Hugh Crowl

Day and Time

MO,TH 10:00am-11:50am

Delivery Method

Fully in-person

Length of Course

Full Term

Academic Term

Spring 2026

Area of Study

Credits

4

Course Level

2000

Maximum Enrollment

24

Course Frequency

Once a year