A Lesson in Counting Stars

These two photographs were made by combining data from NASA Galaxy Evolution Explorer spacecraft and the Cerro Tololo Inter-American Observatory in Chile to learn that not all galaxies make stars of different sizes in the same quantities.

These two photographs were made by combining data from NASA Galaxy Evolution Explorer spacecraft and the Cerro Tololo Inter-American Observatory in Chile to learn that not all galaxies make stars of different sizes in the same quantities.