Since 2020, aggregated from related topics
Observational astrophysics is a branch of astronomy that focuses on collecting and analyzing data from observations of celestial objects and phenomena. This field involves using telescopes and other instruments to study various aspects of the universe, such as galaxies, stars, planets, and cosmological events. Researchers in observational astrophysics often use techniques such as optical, infrared, radio, and x-ray observations to gather information about the properties and behavior of these objects. This data is used to improve our understanding of the nature of the universe and to test theories of astrophysics and cosmology.