Description: Astrophysics is a science that employs the principles of physics to study the nature of astronomical objects. In astrophysics, the radiation across the entire electromagnetic spectrum, together with non-electromagnetic signals, such as gravitational waves and neutrinos emitted by astronomical objects, are studied, alongside their properties in terms of brightness, density, and temperature. Astrophysics is a very broad science that includes branches of theoretical and observational physics.

Related Terms:

• Astronaut
• Science
• Gravitational Waves
• Neutrino

Term and definition status: This term and its definition have been approved by a research astronomer and a teacher

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".