Space Studies vs. Astronomy

11/05/2026

Comparing Two Ways to Study Space, From Distant Stars to Spacecraft and Policy

Astronomy asks some of the biggest questions we have about the universe. How do stars form? What happens around black holes? What are distant worlds made of? Space studies takes a different angle. It looks at the science of space alongside the systems, policies, technologies, and operations that make exploration possible.

There is plenty of crossover between the two. An astronomy student and a space studies student might both examine planets, physics, or telescope data. Their wider coursework, however, can look very different. When comparing space studies vs. astronomy, it helps to start with what you actually want to understand. Do you want to study the universe itself, or are you interested in the wider human effort to explore and operate within it?

Space Studies vs. Astronomy: What's the Difference?

Astronomy is a natural science focused on celestial objects and phenomena beyond Earth. Astronomers use observation, mathematics, physics, and data analysis to investigate stars, galaxies, planets, black holes, neutron stars, and the wider universe.

Space studies is interdisciplinary – it can combine elements of astronomy and space science with aerospace science, space systems, policy, operations, human space flight, and other subjects connected with exploration.

Here's how the two compare:

Neither field is inherently broader or better – they do, however, answer different questions around the space industry.

What Do You Study in Astronomy?

Astronomy is about understanding what exists beyond Earth and how it behaves.

Students might study the solar system, stellar evolution, galaxies, cosmology, celestial mechanics, and the physical properties of objects throughout space.

Observation is a major part of the discipline. Astronomers use ground- and space-based telescopes to observe celestial objects and collect data that can then be analyzed using scientific methods.

The Hubble Space Telescope is a familiar example. Since its launch in 1990, Hubble has gathered observations of planets, distant stars, galaxies, and other phenomena that have contributed to scientific research about the universe.

Students hoping to become professional research astronomers or astrophysicists commonly need advanced education beyond a bachelor's degree.

What Do You Study in a Space Studies Degree?

A space studies degree can include astronomy, but it does not stop there.

American Military University's online Bachelor of Science in Space Studies covers areas such as space science, aerospace science, physics, space policy, satellite and spacecraft systems, spaceflight, and space transportation.

Students can encounter questions such as:

• How does space weather affect satellites?
• What does orbital mechanics tell us about spacecraft movement?
• How are remote-sensing satellites used?
• What challenges does human space flight create?
• How do policy and regulation influence space activities?

That mix covers several areas of the space sector within one degree.

Where Do Space Science and Space Physics Fit?

The terminology can get confusing because space science covers several scientific disciplines.

Astronomy sits within that wider scientific landscape. So do planetary science, astrophysics, and space physics. Space physics examines the physical conditions and processes found in the space environment, including plasma, radiation, solar activity, and interactions between the Sun and planetary environments.

Planetary science, meanwhile, concentrates on planets, moons, asteroids, and other objects. Both astronomy and space studies programs can touch on these areas, although the depth and emphasis depend on the curriculum.

Astronomy Looks Outward. Space Studies Also Looks at How We Get There.

One of the clearest differences appears when spacecraft enter the picture.

An astronomer could use telescope observations to investigate a distant planet. Someone working with space systems might instead be interested in the satellite, instrument, communications network, or mission architecture used to collect information.

Space studies can therefore include space operations, mission planning, remote sensing, spacecraft systems, and the practical challenges involved in exploration.

It also introduces subjects that would not normally sit at the center of an astronomy degree, including space policy, military space activity, commercialization, and human factors.

Space Policy Adds Another Dimension

Outer space is also an operational and political environment.

As government agencies and private companies conduct increasingly complex activities beyond Earth, questions emerge around regulation, security, resources, international cooperation, and commercial activity.

Space policy examines those issues.

Students interested in the relationship between science, government, industry, and exploration can compare programs based on the role of policy alongside technical and scientific subjects.

AMU's Master of Science in Space Studies currently offers Space Policy as one of four concentrations, alongside Aerospace Science, Astronomy, and Earth and Planetary Sciences.

What About Aerospace Engineering?

Space studies and aerospace engineering also overlap without being interchangeable.

Aerospace engineers design and develop aircraft, spacecraft, satellites, propulsion systems, and related technology. That career typically requires specific engineering education and a strong mathematical and technical foundation.

Space studies can introduce students to spacecraft systems, orbital mechanics, aerospace science, and related technology, but students should check the educational requirements for engineering positions rather than assuming any space-focused degree provides the same preparation as an engineering program.

Choosing Between Space Studies and Astronomy

Think about what catches your interest when you hear the word "space." If it is distant stars, black holes, galaxies, planetary systems, and the fundamental questions surrounding the universe, astronomy puts those subjects at the heart of your education.

If your interests stretch across the science and the systems behind exploration, space studies can include areas such as operations, policy, satellites, human space flight, and aerospace science alongside scientific topics.

There is also room to specialize later. AMU's graduate space studies program includes an Astronomy concentration, while its Graduate Certificate in Space Studies is another graduate-level study option.

The better question, then, is not simply whether you like space. It is which part of space you want to spend your time studying. Review the space studies program curriculum to see how its scientific, technical, and policy-focused coursework aligns with your academic interests.

Frequently Asked Questions

Is Space Studies the Same as Astronomy?

No. Astronomy focuses primarily on the scientific study of celestial objects and the universe. Space studies draws from several disciplines and can include astronomy alongside space systems, operations, policy, aerospace science, and human space exploration.

Can You Study Astronomy Within a Space Studies Degree?

Yes, depending on the program. AMU's bachelor's curriculum includes astronomy-related study, while its MS in Space Studies offers a dedicated Astronomy concentration.

What Can You Do With a Degree in Space Studies?

Space studies can relate to areas such as space operations, satellite systems, policy, remote sensing, government activities, research, and mission support. Some technical roles require additional specialized education, training, or qualifications.

Do Astronomers and Astrophysicists Do the Same Work?

The fields overlap substantially. Astronomy broadly studies celestial objects and phenomena, while astrophysics applies physics to questions about how those objects and the universe behave. Individual research roles can cross both disciplines.