the Universe with Photography
By the late 1800s, photography was changing the way astronomers
studied the Universe. The telescope had become a high-powered
camera that recorded images of objects on photographic plates.
These images were more accurate than hand drawings and revealed
objects and details far too faint for the eye to detect.
Astronomers would soon discover that the Milky Way was only
one of countless galaxies, each one a vast swirl of stars.