Obviously we build telescopes, sattelites, radio telescopes, Large Hadron Colliders and other expensive toys to do something other than make empirical observations.
What is his precise objection regarding the matter? Absent that, I wouldn't bother. "Astronomy isn't science hurr durr" is vacuous.
What is his precise objection regarding the matter? Absent that, I wouldn't bother. "Astronomy isn't science hurr durr" is vacuous.