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What Do We Call Scientists Who Study The Solar System?

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Last updated on 7 min read

Scientists who study the solar system are most commonly called planetary scientists or solar system scientists, though roles can overlap with astrophysicists, astronomers, and planetary geologists

What is a solar scientist called?

A solar scientist is called a solar physicist

Solar physicists zoom in on our Sun—its magnetic fields, solar flares, and the solar wind that shapes space weather. Because the Sun’s close enough to observe in detail, these scientists use telescopes and space-based instruments like NASA’s Solar Dynamics Observatory to collect high-resolution data. Their work helps protect satellites, power grids, and astronauts from solar storms. (Honestly, this is some of the most critical space weather research out there.) If you’re curious, you can explore real-time solar images at NASA’s SDO website.

What is called astronomer?

A scientist who studies objects in the sky—planets, stars, galaxies, black holes, and more—is called an astronomer

These days, “astronomer” and “astrophysicist” are tossed around interchangeably because both involve applying physics to understand celestial phenomena. Astronomers typically work with telescopes on Earth or in space, while astrophysicists may also run computer simulations or analyze data from missions like the Chandra X-ray Observatory. Many astronomers specialize in a specific area, such as exoplanets, cosmology, or stellar evolution—it’s a huge field with room for all kinds of curiosity.

Who study our solar system?

Planetary scientists and teams like NASA’s ARES (Astromaterials Research and Exploration Science) study our solar system

ARES scientists analyze meteorites, Moon rocks, and dust from asteroids to piece together how rocky worlds formed billions of years ago. Their work spans geology, chemistry, and planetary physics, and they often support missions like NASA’s Perseverance rover on Mars. If you’re interested in hands-on science, NASA’s ARES program offers internships and research opportunities. (Seriously, it’s one of the coolest places to work if you love space rocks.)

Who is an astrophysicist?

An astrophysicist is a scientist who studies the physical nature of stars, planets, galaxies, and the universe as a whole

Astrophysicists use math, physics, and computer models to explain phenomena like the Big Bang, black holes, or the behavior of distant exoplanets. At NASA, their mission includes searching for Earth-like planets and understanding the origin of galaxies. If you love puzzles, astrophysics is about solving the universe’s biggest riddles—like why galaxies spin or how dark matter works. (It’s basically cosmic detective work.)

What are the 2 types of astronomy?

The two main types are observational astronomy and theoretical astronomy

Observational astronomers use telescopes to collect data from stars, galaxies, and other cosmic objects. They might study the light from an exploding star or map the surface of a distant planet. Theoretical astronomers, on the other hand, build mathematical models to explain how the universe evolves—like simulating galaxy collisions or predicting the fate of the cosmos. Want to try it yourself? Free tools like Stellarium let you observe the night sky virtually. (It’s like having your own planetarium on your computer.)

Who is the father of astronomy?

Galileo Galilei is widely called the father of modern astronomy

Living from 1564 to 1642, Galileo proved that the Sun—not Earth—was the center of our solar system, a radical idea in his time. He also improved the telescope and discovered Jupiter’s moons, sunspots, and lunar craters. His commitment to evidence over dogma laid the foundation for modern science. Fun fact: You can still visit Galileo’s telescope at the Museo Galileo in Florence. (He basically started the whole “science over tradition” movement.)

What does Earth Science Study?

Earth science studies the structure, processes, and 4.5-billion-year history of our planet, including its rocks, oceans, atmosphere, and life

This field includes geology (rocks and landforms), meteorology (weather), oceanography (oceans), and environmental science. Earth scientists help us understand earthquakes, climate change, and natural resource distribution. For example, they track melting glaciers using data from NASA’s ice monitoring missions. You don’t need a lab coat to contribute—citizen science projects let you help collect data on everything from cloud patterns to plant growth. (It’s science you can actually do in your backyard.)

Who studies the moon?

Scientists who study the moon are typically called selenologists or planetary scientists

These experts analyze lunar rocks, map craters, and study the Moon’s geology to uncover clues about Earth’s early history. Missions like NASA’s Lunar Reconnaissance Orbiter provide high-resolution images and data. Some even explore how future lunar bases might use Moon resources. Want to see the Moon up close? Google’s Moon in Google Earth lets you take a virtual tour. (It’s the next best thing to being an astronaut.)

How is the solar system related to science?

The solar system is a planetary system centered around the Sun, including all objects bound to it by gravity—planets, moons, asteroids, comets, and dust

Understanding the solar system helps scientists learn how planets form, why some have life and others don’t, and how stars influence their surroundings. The edge of the solar system, where the Sun’s influence fades, lies about 9 billion miles from the Sun—roughly twice as far as Pluto. Spacecraft like Voyager 1 have ventured into this region, sending back data about interstellar space. You can track their journeys on NASA’s Voyager mission page. (It’s like the ultimate road trip, and we’re all along for the ride.)

Who named planet Earth?

Planet Earth was not named after a god—its name comes from Old English and Germanic words meaning “ground”

Unlike Mars (Roman god of war) or Venus (Roman goddess of love), Earth’s name reflects its physical nature. The word “Earth” traces back to Old English *eorþe* and Proto-Germanic *erthō*, both meaning soil or land. It wasn’t until the 17th century that Earth was recognized as a planet orbiting the Sun. Today, it’s the only planet not named after mythology—though some call it “Terra” or “Gaia” in scientific contexts. (Honestly, it’s kind of refreshing to have a planet named after dirt.)

How old is our galaxy?

Our Milky Way galaxy is approximately 13.6 billion years old

This age is based on observations of the oldest stars and the galaxy’s structure. For comparison, the universe itself is about 13.8 billion years old, so the Milky Way formed shortly after the Big Bang. The galaxy has evolved over time, with smaller galaxies merging to shape its spiral arms. You can see its structure from Earth on a clear night—it appears as a faint, milky band across the sky. Want to explore further? The Hubble Space Telescope has captured stunning images of the Milky Way’s star-forming regions. (It’s like looking at our galaxy’s baby photos.)

Who first discovered the solar system?

The Polish astronomer Nicolaus Copernicus first proposed the heliocentric model of the solar system in the 16th century

In his book On the Revolutions of the Heavenly Spheres (1543), Copernicus argued that the Sun—not Earth—was at the center of our planetary system. This challenged the long-held geocentric view and paved the way for modern astronomy. Later, Johannes Kepler refined the model by showing planets move in elliptical orbits. You can read Copernicus’s original work in translation at Britannica. (He basically flipped the script on how we see our place in the universe.)

Who is the most famous astrophysicist?

Albert Einstein is often regarded as the most famous astrophysicist

Einstein’s theories of relativity reshaped our understanding of space, time, and gravity. His equation E=mc² showed that mass and energy are interchangeable, while his predictions about black holes and gravitational waves were later confirmed. Though not the only giant in the field, Einstein’s name is synonymous with genius. You can explore his papers and life at Einstein Archives Online. (He’s basically the rock star of physics.)

What skills do you need to be an astrophysicist?

To become an astrophysicist, you need strong math, physics, analytical thinking, and programming skills

Most astrophysicists hold advanced degrees and spend years analyzing data or running simulations. Key skills include calculus, quantum mechanics, and familiarity with tools like Python or MATLAB. Communication is also crucial—you’ll need to explain complex ideas to peers and the public. If you’re starting out, consider free online courses from Coursera or MIT OpenCourseWare. Hands-on experience, like internships or research projects, can set you apart. (It’s not just about crunching numbers—you’ve got to tell the story too.)

Does NASA hire astrophysicists?

Yes, NASA hires astrophysicists for research, mission operations, and data analysis

NASA’s astrophysics division runs missions like the Hubble Space Telescope and James Webb Space Telescope, which require teams of astrophysicists to interpret data. NASA also collaborates with international partners and universities, offering opportunities for scientists worldwide. Check current openings on USAJOBS or NASA’s careers page. Keep in mind that competition is fierce, so gaining experience through internships or publications can boost your chances. (It’s a tough field, but the work is out of this world.)

Edited and fact-checked by the FixAnswer editorial team.
Joel Walsh

Known as a jack of all trades and master of none, though he prefers the term "Intellectual Tourist." He spent years dabbling in everything from 18th-century botany to the physics of toast, ensuring he has just enough knowledge to be dangerous at a dinner party but not enough to actually fix your computer.