Astrophysicist

An Astrophysicist is a Scientist that deals with the physics of the universe, including the physical properties (luminosity, density, temperature, and chemical composition) of celestial objects such as galaxies, stars, planets, exoplanets, and the interstellar medium, as well as their interactions.

Known Astrophysicists

 * Samantha Carter
 * Rodney McKay
 * Dale Volker
 * Neil deGrasse Tyson