The 17th century astronomer describes Saturn's rings.

It was first used by 18th century astronomers investigating planet rotation around the Sun.

Probably the most notorious instance of scientific stubbornness was the refusal of eighteenth century astronomers to believe that stones actually fell from the sky.

Nineteenth century astronomers had to climb on the shoulders of scientific giants to see it.

The crater is named for 17th century French astronomer and geodesist Jean Picard.

It is named after the 1st century Greek astronomer Agrippa.

Thomas Wright, (1711-1786) a famous 18th century astronomer, architect and mathematician was born and died here.

It was later translated by the sixteenth century astronomer and mathematician Francesco Maurolico.

The cosmic significance of red shifts was realized by early 20th century astronomers analyzing the spectral characteristics of the light coming from celestial objects.

It is named after the 19th century German astronomer and mathematician Friedrich Bessel.