Stephen Hawking, Copernicus, galileo are the only ones I can think of.
An astronomer is a scientist specializing in the field of astronomy, which is the physical science that studies celestial bodies and phenomena.
Some popular forums on Stack Exchange Astronomy where you can engage with fellow enthusiasts and experts in the field include "Astrobiology," "Astronomy," and "Space Exploration."
Astronomy and cosmology.
isasic neaton
That depends on what your goal is.
That's part of the field of Astronomy.
Galileo Galilei.
Galileo.
natural philosophy, botany, astronomy and more.
Galileo Galilei [-:
Astronomy.
Johannes' field of study was astronomy and mathematics.