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Astronomy

Jon Celesia
APECS Department Chair 
Science Center, Room 229
jcelesia@contracosta.edu
510.215.4095


Astronomy at Contra Costa College

Explore the cosmos in our popular Elementary Astronomy and Topics in Astronomy courses—designed to ignite curiosity and make complex concepts feel approachable and exciting.

In Elementary Astronomy, you’ll build a strong foundation in the workings of our solar system, stars, galaxies, and the universe at large. Discover the life cycle of stars, the nature of black holes, and the basics of space exploration—all through an engaging, student-centered approach.

Topics in Astronomy takes you deeper, covering emerging and specialized subjects like exoplanets, dark matter, and recent breakthroughs in astrophysics. Whether you’re a casual stargazer or a future scientist, these courses will expand your understanding of the universe and your place within it.

Learn more about Astronomy and other APECS department programs

What is Astronomy

Astronomy is the scientific study of the universe beyond Earth—from planets and stars to galaxies and the origin of space and time itself. It blends observation and theory to help us understand how the cosmos works, evolves, and connects to our everyday lives.

CCC is the only NASA Aerospace Scholar Campus in Northern California

CCC and NASA want to invite you to take part in an authentic NASA learning experience and incredible professional opportunity!

Find Out More

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Student Resources

At Contra Costa College, we provide essential resources to support your academic journey. Our Academic Counseling, Basic Needs Center, Career Services, and Transfer Services are designed to help you succeed in your studies, manage personal challenges, prepare for your career, and smoothly transition to four-year institutions.

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