Key Takeaways

• Well-Trained Mind Academy offers Astronomy, a full-year live online course for grades 9-12 that meets twice a week for 50-55 minutes and requires Algebra I and Geometry.
• Stanford Online High School offers Life in the Cosmos, a year-long astrobiology course, and its application deadline for the 2027-28 school year is January 7, 2027.
• The University of Arizona’s Astronomy: Exploring Time and Space on Coursera takes 5 weeks at 10 hours a week and requires no prior experience.
• The Johns Hopkins Center for Talented Youth (CTY) offers the on-campus Astrophysics course to students in grades 7-11 with Advanced CTY-Level test scores and Algebra I.
• NASA OSTEM internships require applicants to be at least 18 years old by the session start date, and the Summer 2027 application deadline is March 1, 2027.
• NASA Exoplanet Watch lets anyone analyze real exoplanet data for free, and participants whose data appears in a scientific paper are listed as co-authors.

What is Astronomy Like in High School?

For students in high school, astronomy online courses are always exciting because they enable them to find out what lies outside our planet. Typically, these classes have some topics such as the solar system, stars, galaxies, and basic astrophysics principles.

These units teach the historical background of astronomy science as well as tools used by astronomers and the latest findings made by scientists. In the course of learning sometimes students can be involved in real practices which include looking through telescopes at celestial bodies or trips to planetariums.

The study of astronomy while still in high school develops outer space awareness, which leads to dynamic thinking that could help in problem-solving.

Online Astronomy Courses for High School Students

There are various types of online classes for astronomy that can help you learn more about the universe without having to leave your house.

Well-Trained Mind Academy: Astronomy

High school students also have the opportunity to learn about Well-Trained Mind Academy offers Astronomy, a full-year live online course for students in grades 9-12. The course is an introductory survey of astronomy, and students use basic algebra and geometry to work through principles such as the motions of bodies in space.

Astronomy students at Well-Trained Mind Academy work with images and image-based software, which includes analyzing photos and doing statistical analysis of wavelengths. Students also work with data in scientific investigations and discuss their understanding with classmates.

Astronomy at Well-Trained Mind Academy requires Algebra I, and students should be enrolled in or have completed Geometry. The class meets twice per week for 50-55 minutes, has a cap of 15 students, and awards 1 non-lab science credit to students in grades 9-12.

Stanford Online High School: Life in the Cosmos

Life in the Cosmos is a year-long astrobiology course at Stanford Online High School. The course places Earth within a vast universe and examines the conditions under which life arose on Earth, to inform the likelihood of finding life on other habitable planets. It also covers the technical, biological, ethical, and societal challenges of solar system exploration and of planning a future for human life beyond Earth.

Class activities and labs in Life in the Cosmos include observing with telescopes, designing Mars habitats, and joining citizen science campaigns such as the NASA Exoplanet Watch initiative.

Stanford Online High School admits students through a competitive application, and students can enroll in a single course while attending another school. The application deadline for the 2027-28 school year is January 7, 2027, and the application requires a test score report. Single-course tuition was $6,380 for 2026-27, and a course takes an estimated 8-10 hours per week.

University of Arizona: Astronomy: Exploring Time and Space

Astronomy: Exploring Time and Space is a University of Arizona course on Coursera taught by Chris Impey. The course is at beginner level and requires no prior experience. It covers the history of astronomy, modern telescope design, and space exploration, including the habitability of Mars.

The course runs 5 weeks at 10 hours a week on a flexible, self-paced schedule, and it includes 21 assignments. More than 265,000 learners have enrolled, the course has 3,974 reviews, and 98% of learners liked it.

The course is included with Coursera Plus and offers a shareable certificate. Learners can audit the course for free.

Astronomy Courses and Programs on Campus

The programs below take place in person, on a college campus or at a NASA center.

Johns Hopkins CTY: Astrophysics

grades 7-11. The course covers the physical laws governing astronomical objects, the scale and distances between planets, stars, and galaxies, stellar evolution, and the formation of neutron stars and black holes. The typical class size is 18-20 students.

Students need the Advanced CTY-Level identification level, which comes from qualifying test scores, and a completed Algebra I or Honors Algebra I course. New students must join CTY for a $55 fee, and in-person courses carry a $75 registration fee.

CTY’s tentative core dates for summer 2027 are June 27 to July 16 for Summer A and July 18 to August 6 for Summer B. Registration opens in early December 2026, and the registration deadlines in 2027 are May 10 for Summer A and June 7 for Summer B. The Astrophysics course page lists no open sections right now, and it shows the dates and tuition for each section once registration opens.

NASA Internships

The NASA Office of STEM Engagement (OSTEM) runs paid internships at NASA centers and facilities, where interns work on agency projects with NASA mentors.

OSTEM interns must be U.S. citizens with a 3.0 GPA on a 4.0 scale, and they must be at least 18 years old by the start date of the session. High school seniors can apply for the summer session that immediately follows their graduation. The Summer 2027 application deadline is March 1, 2027.

NASA Pathways internships are a separate program for U.S. citizens who are at least 16 years old at the time of appointment and have a 2.9 GPA. Pathways internships are long-term developmental internships that can lead to federal employment at NASA.

Do Real Astronomy for Free: NASA Exoplanet Watch

NASA Exoplanet Watch is a citizen science project sponsored by NASA’s Universe of Learning, and anyone can join, from students to professionals. Participants gather and analyze real exoplanet data, contribute their results to a NASA database, and can receive recognition in scientific publications.

Exoplanet Watch gives participants free data from remote robotic telescopes through its data checkout system, so no telescope is required. Participants who own a telescope can also observe a transiting exoplanet themselves.

Participants analyze the images with the free EXOTIC software to create a light curve of a transiting exoplanet. They then send the light curve to the American Association of Variable Star Observers (AAVSO), and Exoplanet Watch adds it to its Results page.

When a participant’s observations or light curves appear in a scientific paper, Exoplanet Watch lists the participant as a co-author of the paper.

Turn an Astronomy Course Into a Lab Science Credit

Well-Trained Mind Academy awards 1 non-lab science credit to students in grades 9-12 who complete its Astronomy course. A student earns a full laboratory science credit by taking Astronomy together with the corresponding Astronomy Lab, a one-semester course for high school students.

Stanford Online High School gives every student a Stanford OHS transcript for the courses taken at the school, and students can send it to their local high school or to the colleges they apply to. The local school’s policies determine how Stanford OHS courses are awarded credit.

Stanford Online High School recommends that students ask their school how it will consider Stanford OHS credit before they enroll.

Preparing for a Career in Astronomy

Students should follow the right courses, maintain high grades, and participate fully in extracurricular activities for a career in astronomy. Here is what you need to know:

What are The Best High School Classes to Take for Astronomy?

To become astronomers, students who want to engage with basic sciences such as physics and maths are required to read this. These are the basic things regarding principles of astronomical science including astrophysics.

Recommended High School Classes for Aspiring Astronomers

Physics, chemistry or advanced math classes could be taken while still at high school. Additionally, computer science classes would also be helpful since modern astronomy heavily relies on data analysis and other computational methods. It is even advisable that they join any non-academic Science Clubs or Astronomy Clubs since it gives them first hand experience.

What Grades Do You Need to Be an Astronomer?

No official GPA requirement exists for becoming an astronomer. The U.S. Bureau of Labor Statistics lists a doctoral or professional degree as the typical entry-level education for astronomers. Strong grades in mathematics and science help students qualify for the university programs that lead to those degrees.

Frequently Asked Questions (FAQ)

Is astronomy high-paying?

The U.S. Bureau of Labor Statistics reports a median annual wage of $132,170 for astronomers in May 2024. Astronomers typically need a doctoral or professional degree, so pay depends on advanced qualifications, job title, and experience.

Is being an astronomer in high demand?

Astronomy is a small field. The U.S. Bureau of Labor Statistics counts about 1,800 astronomer jobs in 2024 and projects 4% growth for physicists and astronomers combined from 2024 to 2034, which is about as fast as the average for all occupations. Many astronomers teach at universities or do research.

What is the first thing to learn in astronomy?

It starts with recognizing constellations, stars and planets. Also significant is fundamental concepts of celestial mechanics encompassing light, optics and movement of celestial bodies.

Which degree is best for astronomy?

An undergraduate degree in either astronomy or astrophysics would be most appropriate for someone who wants to work in this field. These programs provide training in physics, mathematics and observational methods. The U.S. Bureau of Labor Statistics says physicists and astronomers typically need a Ph.D., although entry-level physicist jobs in the federal government typically require a bachelor’s degree in physics.

What is the #1 college for astronomy?

No single official ranking decides the number one college for astronomy, and different lists place different universities first. The California Institute of Technology (Caltech) is one frequently cited option, and it operates Palomar Observatory and manages NASA’s Jet Propulsion Laboratory.

Conclusion

In the end, high school astronomy teaches kids a wide range of topics about the cosmos, from the lifecycle of a star to the beginning of the universe. So, if you or a high school student you admire loves to learn about our place in the Milky Way and beyond, these courses are an excellent start.

But if you’re interested in other courses that can enhance your knowledge or even improve your college application, check out the best online courses for high school students.