Danish Astronomer Tycho Brahe's observations of the Great Comet of 1577 overturn 1,500 years of scientific belief when he uses them to prove that planets do not orbit inside concentric crystalline spheres.
Follow the efforts to give the Earth a shape and a place. From flat Earth legends to Galileo's telescope, track major changes in scientific understanding. Ideas rise and fall as we continue to explore our ancient skies.
Explore the origins of our relationship with the skies. Our ancestors use the sky to navigate and tell time, and give religious significance to what they see in it. Then, a revolution gives birth to modern science.