1.   Early astronomers did not have telescopes to assist their observations, but nevertheless they had a full knowledge of the skies.

2.   Early astronomers thought that our planet was the centre of the universe.

3.   As early astronomers turned their telescopes to Venus, they realized they were only seeing clouds instead of the surface of the planet.

4.   She captures the puzzlement of early astronomers, trying to decipher the mystery of meteors and falling stars.