An astronomer is an expert who spends a lot of time learning and detecting the performance of stars, galaxies, planets and other celestial objects. Learn in detail on how to become an astronomer; its job description, training required and salary earned #careerlancer #astronomer #astronomy #space #nasa #science #galaxy #universe #cosmos #astrophotography #cosmology #astronaut #spacetime #astrophysics #outerspace #moon #stars #telescope