Astrophysics
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.
​
It is a science that employs the methods and principles of physics in the study of astronomical objects and phenomena. Among the subjects studied are the Sun, other stars, galaxies, extrasolar planets, the interstellar medium and the cosmic microwave background.
1
Dr. Rebecca Smethrust
Dr. Becky is an Astrophysicist with a PhD from Oxford. She currently runs a YouTube channel and is also working on a few books and research papers in her field.
2
Neil deGrasse Tyson
Dr. Tyson is an Astrophysicist with a PhD from Columbia. He has written a few books and is a large American personality.