Saturn | Astronomy.com

A large, tan- and cream-banded planet is shown from a high angle, floating against a solid black background. A wide, flat system of concentric grey and white rings encircles the planet horizontally, casting a long, dark, curved shadow onto the left side of the planet's surface. The sphere itself is brightly lit on its right side, creating a stark contrast with the deep shadows and the dark void of space around it.

Today in the History of Astronomy

July 30, 1610: Galileo sees Saturn’s rings

A large, tan- and cream-banded planet is shown from a high angle, floating against a solid black background. A wide, flat system of concentric grey and white rings encircles the planet horizontally, casting a long, dark, curved shadow onto the left side of the planet's surface. The sphere itself is brightly lit on its right side, creating a stark contrast with the deep shadows and the dark void of space around it.

Robotic Spaceflight, Today in the History of Astronomy

July 1, 2004: The Cassini-Huygens mission makes it to Saturn

A man with long, curly dark hair is depicted from the waist up, facing left. He rests one hand on a large celestial globe while gesturing with his other hand toward an outdoor scene visible through a window behind him. The background shows a large stone building and several figures operating long telescopes on a grassy field, all rendered in detailed monochrome linework.

Today in the History of Astronomy

June 8, 1625: The birth of Giovanni Cassini

A curved, icy surface stretches across the lower portion of the frame, with multiple bright jets of vapor and particles erupting upward into a black sky from the moon's fractured southern terrain.

Scientists used a method from ecology to identify whether icy moons could hold conditions for life

Today in the History of Astronomy

April 14, 1629: The birth of Christaan Huygens

Today in the History of Astronomy

March 25, 1655: Christiaan Huygens discovers Titan

Did Titan form when two moons collided?

Robotic Spaceflight, Today in the History of Astronomy

Jan. 14, 2005: Huygens lands on Titan

Today in the History of Astronomy

Dec. 23, 1672: Saturn’s moon Rhea is discovered

Why do giant planet jet streams blow in opposite directions?

Robotic Spaceflight, Today in the History of Astronomy

Oct. 15, 1997: Cassini-Huygens launches

Organic molecules in Saturn’s rings originated from liquid water, scientists confirm