Link to 100 Greatest discoveries: Astronomy documentary
Documentary Description
For most of human history, the only light we knew came from the sky. By
day, the sun. By night, an uncountable number of stars. From the
beginning, our ancestors believed that the sun and the stars were
heavenly – out of this world – and they were right. We've been watching
the sky for thousands of years, but until recently we couldn't see well
enough to understand our connection to the cosmos. But now, our
astronomical vision has sharpened; we can see farther and clearer. We
can observe objects that are invisible to human eyes. Our increasingly
improving vision has allowed us to make great discoveries revealing an
astonishing and wonderful universe. What follows are 13 of the greatest
discoveries of astronomy.