This line engraving of Galileo depicts the astronomer alongside a drawing that shows Earth’s orbit around the Sun, as well as the Moon’s orbit around Earth. Line engraving by Boutrois ...

Galileo Moon Drawings. If the end of Galileo's life bore the poignant stamp of art, so did its beginning. To this day, on the facade of a Florentine palace, a plaque commissioned by Galileo's disciple ...

On Jan. 7, 1610, Galileo discovered four moons revolving around Jupiter — a discovery that would change his life forever. These four moons are Jupiter’s largest satellites — lo, Europa ...

The bottom half, supposedly written months later, contains a series of "doodles" that depict Jupiter's moons—once thought to be original notes from Galileo's observations in January 1610.

Galileo was the first person to observe the rings of Saturn. He spent hour after hour on painstaking drawings of the Moon through its phases, observed Venus and Mars, ...

On this date, Jan. 7, 1610, astronomer Galileo Galilei, with a homemade telescope, noticed three points of light near Jupiter ...