Astrophysicists use physics and mathematics to study how the universe works, including stars, planets, galaxies, black holes, and other extreme objects and events. They use observations, computer models, simulations, and large datasets to investigate questions about the origins and evolution of the universe. Their work can involve areas such as cosmology, exoplanets, stellar physics, gravitational waves, or high-energy astrophysics.
A bachelor's degree in physics, astrophysics, astronomy, or a related field is the usual starting point. A master's degree or Ph.D. is typically required for advanced research and university careers, with a Ph.D. generally expected for research positions in academia. Strong mathematics and computer programming skills are increasingly important for analyzing and modeling scientific data.
Astrophysicists work primarily in universities, government research organizations, observatories, laboratories, and research institutes. Much of the work involves analyzing data, developing mathematical models, running computer simulations, and collaborating with other scientists. However, some positions involve observing at major telescopes or working with space missions. The work can also include teaching, writing research papers, presenting findings, and applying for research funding.
Astrophysics will continue to benefit from new telescopes, space missions, powerful computing, and increasingly detailed astronomical datasets. Programming, data analysis, and computational modeling are becoming important parts of modern astrophysics, with Python, MATLAB, C++, and C appearing in 2025 U.S. job postings for astronomers. The field is highly specialized and competitive, so students who build strong skills in physics, mathematics, computer science, and research will be best prepared for opportunities in astrophysics and related scientific fields.