astrophysicist

Examples:

Sir Fred Hoyle

an English astrophysicist and advocate of the steady state theory of cosmology; described processes of nucleosynthesis inside stars (1915-2001)

Edwin Powell Hubble

United States astronomer who discovered that (as the universe expands) the speed with which nebulae recede increases with their distance from the observer (1889-1953)

Type of:

astronomer, stargazer, uranologist

a physicist who studies astronomy