If you are thinking about studying physics, space science, or engineering later on, astronomy is a subject you may want to explore now. A structured program during high school can give you a clearer sense of how the field actually works.
In these programs, you might work with observation data, study how celestial bodies move, or learn how scientists interpret signals from space. Some also include telescope sessions or guided projects that connect astronomy with physics and data analysis.
Why should you choose a program in Philadelphia?
Philadelphia provides access to science museums, university observatories, and research institutions that support astronomy education. This creates opportunities to learn in places where astronomy is actively taught and demonstrated. These programs also help you build academic experience that adds depth to your college applications. They show that you explored your interests in a focused and practical way.
With that in mind, here are 15 astronomy programs for high school students in Philadelphia! You can also check our blog on online astronomy programs here.
15 Astronomy Programs for High School Students in Philadelphia
1. Rutgers Astronomy & Astrophysics Academy
Location: Rutgers University–New Brunswick, New Jersey (near Philadelphia)
Cost: $2,899
Acceptance rate/cohort size: Selective; cohort size limited
Dates: July 12 – July 18; July 19 – July 25
Application Deadline: Not specified
Eligibility: Students completing their sophomore and junior years, ages 16 to 18
Rutgers’ Astronomy & Astrophysics Academy introduces you to different areas of space science through a mix of lectures, activities, and field visits. You move across topics like planetary science, cosmology, and observational astronomy while building a basic understanding of how these areas connect. The program includes hands-on sessions where you work through concepts using practical exercises rather than just listening. You also visit the Robert A. Schommer Astronomical Observatory, which gives you a direct look at how observations are carried out. Along the way, you interact with astrophysicists and begin to understand how research develops beyond the classroom.
2. Astronomical Techniques Research Academy
Location: University of Pennsylvania, Philadelphia
Cost: $6,700
Acceptance rate/cohort size: Selective; Roughly 20–30% acceptance
Dates: July 11 – July 25
Application Deadline: Applications are reviewed on a rolling basis and are often recommended by mid‑February
Eligibility: High School Students
This program at Penn focuses on how astronomical data is actually collected and processed, which means you spend a lot of time working with tools rather than just concepts. You build simple instruments like cameras and spectrometers, whichhelps you understand how light is captured and analyzed. You also process datasets using Python, where you visualize and interpret results step by step. Observations are part of the program, including both solar and nighttime telescope sessions, which give you real data to work with. As you move forward, you also learn how coordinate systems and tracking algorithms are used to locate objects in space. The structure stays close to how early-stage research is done, from data collection to final presentation.
3. Experimental Physics Research Academy
Location: University of Pennsylvania, Philadelphia
Cost: $10,050
Acceptance rate/cohort size: Selective/highly competitive
Dates: July 11 – August 1
Application Deadline: Typically mid-February
Eligibility: High School Students
The Experimental Physics Research Academy takes you through physics concepts in a way that builds gradually, starting from basic motion and moving toward topics like electromagnetism, nuclear physics, and quantum mechanics. You spend most of your time in labs and projects where you test ideas, observe results, and adjust your understanding based on what happens. Instead of focusing on memorizing formulas, the program pushes you to think through cause and effect and understand why results look the way they do. Astrophysics appears within this broader framework, especially when you connect physical laws to space phenomena.
4. Summer Science Program (SSP) – Astrophysics
Location: Lehigh University, Pennsylvania
Cost: Not specified
Acceptance rate/cohort size: Not specified
Dates: June 22 – July 25
Application Deadline: February 19
Eligibility: Current high school juniors who have completed or are in the process of completing any level of high school physics and precalculus by June for credit and a grade.
The Summer Science Program is one of the more intensive options, where you spend several weeks working on a single research problem involving near-Earth asteroids. You work in small teams, using telescopes to collect observations and writing Python code to calculate orbital paths. The work combines astronomy, physics, calculus, and programming, so you are constantly switching between different kinds of thinking. As your data builds, you refine your calculations and check how accurate your results are. By the end, your findings are submitted to the Minor Planet Center, which means your work contributes to an actual scientific database.
5. Pennsylvania Governor’s School for the Sciences
Location: Pittsburgh, Pennsylvania (CMU campus)
Cost: Free
Acceptance rate/cohort size: 90 students per year
Dates: June 21 – July 25
Application Deadline: January 31
Eligibility: Pennsylvania high school juniors (rising seniors)
PGSS runs as a fully funded residential program where you take college-level courses across subjects like physics, math, computer science, and biology. You spend your time moving between lectures, labs, and team research projects, which gradually build into a final presentation. The program removes grades, which shifts the focus toward understanding rather than performance. You also live on campus, which changes how your day is structured and how you interact with others in the program. Over time, you begin to see how different areas of science connect, especially when working on collaborative projects.
6. Excel High School – Online Astronomy Course
Location: Online
Cost: Not specified
Acceptance rate/cohort size: Open
Dates: Self-paced
Application Deadline: Rolling (self-paced)
Eligibility: High School Students
Excel High School’s astronomy course runs at your own pace, where you move through lessons that introduce core topics like planets, stars, galaxies, and space exploration. You complete assignments and assessments that follow a structured curriculum, which keeps the learning organized. The course also includes modern topics like dark matter and space travel, which add depth beyond basic material. Since it is self-paced, you decide how quickly you move, which makes it easier to balance with school. By the end, you complete a full-credit course that reflects your understanding of the subject.
7. Stars of Tomorrow – Online Astronomy Course
Location: Online
Cost: Free
Acceptance rate/cohort size: Open
Dates: 16-session program (self-paced)
Application Deadline: Rolling
Eligibility: High School Students
Stars of Tomorrow is designed more for problem-solving than general learning, where you work through advanced questions similar to those seen in astronomy Olympiads. You spend your time solving multi-step problems related to celestial mechanics, stellar physics, and radiation processes. The exercises are structured to improve both speed and accuracy, which becomes important when handling complex calculations. You also develop mathematical reasoning as you move through increasingly difficult problems. The program focuses on building depth rather than covering a wide range of topics.
8. MyFunScience High School Astronomy Course
Location: Online
Cost: $612
Acceptance rate/cohort size: Open
Dates: Weekly sessions
Application Deadline: Rolling
Eligibility: High School Students grade 9 – 12
MyFunScience’s course introduces astronomy through structured lessons that connect concepts to how observations are actually made. You study topics like telescope optics, celestial motion, and deep-space phenomena while working through guided exercises. The program explains how instruments function and how light is used to gather information from distant objects. You also work on conceptual models that help you understand how systems behave. The structure keeps moving between theory and application, which helps make abstract ideas clearer over time.
9. NASA GeneLab for High Schools (GL4HS)
Location: Online
Cost: Free
Acceptance rate/cohort size: Capacity up to 1,000 students; historically, all eligible applicants have been accepted until the program fills
Dates: 12 weeks (June – August)
Application Deadline: March 15
Eligibility: Pennsylvania high school juniors (rising seniors)
NASA’s GeneLab program focuses on how biological systems behave in space, which brings together astronomy and life sciences in an unusual way. You work with real datasets that include genetic and protein-level information collected during space missions. The program runs largely online, where you move through recorded lectures, coding exercises, and optional live sessions. You learn how to analyze data, interpret results, and communicate findings clearly. If you choose the capstone option, you work in a team to carry out a research project and present it in a formal setting.
10. High School Astronomy – Well-Trained Mind Academy
Location: Online
Cost: $825–$975 (Full Year); $500 (Semester Lab)
Acceptance rate/cohort size: Class cap of 15 students
Dates: Full-year course (meets twice per week for 50–55 minutes)
Application Deadline: Rolling (open until sections fill; see site for current enrollment windows)
Eligibility: High school students in grades 9–12
This live online course works like a full-year high school astronomy class rather than a casual enrichment program, so you follow a structured sequence across the entire academic year. You study topics like the celestial sphere, telescopes, planetary systems, stellar evolution, galaxies, and cosmology, with reading drawn from a college-style astronomy text and popular science books. Twice-weekly live sessions keep you accountable, as you come prepared to discuss assigned readings, work through problems, and analyze images or spectra using basic algebra and geometry. By the end, you earn one high school non-lab science credit (or a full lab credit when paired with a separate lab) and have practiced engaging with astronomy at a level that feels closer to an early college survey than a short camp.
11. Astronomy – Forest Trail Academy Online High School
Location: Online
Cost: Varies by enrollment option
Acceptance rate/cohort size: Open to enrolled Forest Trail Academy students (no published cap)
Dates: Self-paced within the high school term or year (completion timeline set by school policy)
Application Deadline: Rolling, aligned with Forest Trail Academy course enrollment periods
Eligibility: High school students taking Forest Trail Academy’s online courses
Forest Trail Academy’s astronomy elective runs as an online high school science course where you move lesson by lesson through the composition and structure of the universe. You begin with historical astronomy and celestial tools, then work your way through the celestial sphere, the solar system, the Earth–Moon system, the Sun as a star, and the broader stellar and galactic environment. Each unit combines readings, teacher-provided resources, and graded quizzes, activities, and projects, so you are assessed on consistent engagement rather than just a final exam.
12. Introduction to Astronomy – Alison
Location: Online
Cost: Free
Acceptance rate/cohort size: Not specified
Dates: Self-paced
Application Deadline: Not specified
Eligibility: Beginners friendly course that is open to all, including high school students
Alison’s course works as a starting point if you are new to astronomy and want to understand the basics before going deeper. You study topics like the solar system, galaxies, and the Big Bang through short, easy-to-follow lessons. The format is simple, which makes it possible to complete the course quickly. It does not go heavily into mathematics or physics, but it helps you build a clear conceptual base. The flexibility allows you to explore the subject without pressure.
13. Astronomy Course – BYU Online High School
Location: Online
Cost: Paid (can build your own course from the costs given on the site)
Acceptance rate/cohort size: Not specified
Dates: Self-paced
Application Deadline: Not specified
Eligibility: High school students
This astronomy course begins with early astronomy concepts like naked-eye observations and the historical development of the field, then gradually moves into topics like stellar evolution and galaxies. You learn how scientists use tools such as spectroscopy and observational data to study space. The course also includes creative elements, where you think through problems related to human space exploration. Since it is self-paced, you can adjust your schedule depending on your workload. The structure allows you to move from basic understanding to more detailed concepts over time.
14. AstroTech – The Science and Technology behind Astronomical Discovery – Coursera
Location: Online
Cost: Free
Acceptance rate/cohort size: Not specified
Dates: Self-paced
Application Deadline: Not specified
Eligibility: Beginner-friendly course that is open to all, including high school students
AstroTech focuses on the tools and methods used in astronomy, rather than just the discoveries themselves. You study how telescopes work, how data is collected, and how observations are turned into conclusions. The course also introduces computational thinking, which becomes important when working with large datasets. You begin to see how physics, engineering, and astronomy connect in practical ways. The structure helps you understand how discoveries are made step by step, not just what has been discovered.
15. Astronomy: Exploring Time and Space – University of Arizona (Coursera)
Location: Online (Coursera MOOC by the University of Arizona)
Cost: Free to audit (paid upgrade for graded assignments and certificate)
Acceptance rate/cohort size: Open-enrollment, self-paced MOOC (no formal cap)
Dates: Approximately 40–50 hours of content; offered on a flexible, self-paced schedule
Application Deadline: None; you can enroll at any time (start dates offered year-round)
Eligibility: Open to all learners; suitable for motivated high school students with an interest in modern astronomy
This MOOC functions as a broad, university-designed introduction to modern astronomy that you can take entirely online at your own pace. You explore topics like the solar system, stars, galaxies, exoplanets, cosmology, and recent discoveries, with video lectures, auto-graded quizzes, and optional peer-reviewed assignments. The course is intentionally beginner-friendly, so you can join even with a minimal science background, but you still encounter up-to-date research and observational results that go beyond a typical high school textbook. If you choose the paid option, you also complete graded work and earn a shareable certificate, which can be useful when you want to demonstrate sustained engagement with astronomy on applications or portfolios.
One more option – Horizon Academic Research Program
If you’re looking for a competitive mentored research program in subjects like data science, machine learning, political theory, biology, and chemistry, consider applying to Horizon’s Research Seminars and Labs! This is a selective virtual research program that lets you engage in advanced research and develop a research paper on a subject of your choosing. Horizon has worked with 1000+ high school students so far and offers 600+ research specializations for you to choose from. You can find the application link here!
Image Source – Brigham Young University