Me! there are an estimated 200-400 billion stars in our galaxy, and possibly 100 billion galaxies in our universe. why does the sun appear to be the largest object in the sky? a) the sun is the closest star to earth. b) the sun is the biggest star in the universe. c) the sun's light is brighter than any other in the universe. d) the sun just appears large due to the bending of light rays in the atmosphere.