english: They go out and point a telescope at the sky, take a picture, identify what are stars and throw them away, look at the galaxies, estimate how far away they are, and plot them up.
non_english: Oni izađu i upere  teleskop u nebo, slikaju, identifikuju koje su zvezde i odbace ih,  gledaju u galaksije, procene koliko su udaljene i nacrtaju ih