* Philosophy: This is the broadest field, concerned with fundamental questions about existence, knowledge, reality, morality, and more. Branches like metaphysics, cosmology, and epistemology deal with the nature of the universe, its origins, and how we know what we know.
* Cosmology: This is a branch of physics that studies the origin, evolution, and large-scale structure of the universe. It uses scientific methods to study the universe's history and its future.
* Astrophysics: This field studies the physical properties of celestial objects, including stars, galaxies, and the interstellar medium. It overlaps with cosmology and explores the universe's composition and processes.
* Theoretical Physics: This field deals with developing theoretical models to explain physical phenomena, including the universe's fundamental properties and laws. String theory, quantum gravity, and the study of dark matter and dark energy are some examples.
* Religious Studies: While not directly studying "truth," religious studies explore different beliefs and interpretations of the universe, often with a focus on spiritual and ethical implications.
Ultimately, the best answer depends on what specific aspects of "basic truth and ideas about the universe" you are interested in.
