hubble telescope
Astronomer
An astronomer is a scientist who studies celestial objects and phenomena in the universe to understand its nature and evolution.
Astronomer.
Ptolemy
Aristarchus of Samos.
Astronomer
was the center of the universe
Ptolemy
Ptolemy
Edwin Hubble
An astronomer is a scientist who studies celestial objects and phenomena in the universe to understand its nature and evolution.
Astronomer.
Yes, the noun 'astronomer' is a common noun, a general word for someone who studies the universe and the objects in it.
Nicolus Copernicus
Ptolemy
Aristarchus of Samos.
Most generally, someone who studies the universe is an astronomer. If you are thinking specifically about the ideas about how it all evolved, then you'd say a cosmologist.