please tell us about astrophysics?

Hello!

Astrophysics is a branch of space science that applies the laws of physics and chemistry to explain the birth, life and death of stars, planets, galaxies, nebulae and other objects in the universe. It has two sibling sciences, astronomy and cosmology, and the lines between them blur.

In the most rigid sense:

Astronomy measures positions, luminosities, motions and other characteristics

Astrophysics creates physical theories of small to medium-size structures in the universe

Cosmology does this for the largest structures, and the universe as a whole

Goal of astrophysics-

The goal of astrophysics is "to discover how the universe works, explore how it began and evolved, and search for life on planets around other stars."