Christiaan Huygens

In 1659, Dutch astronomer Christiaan Huygens was the first to describe Saturn's rings as a flat, circular disk, and the concept of a ringed planet first entered the human imagination.

SETI Institute: Life at the SETI Institute: From Galileo to Cassini -- 400 Years of Saturn's Rings 2010

Christiaan Huygens discovered the first known moon of Saturn.

Universe Puzzle No. 2 | Universe Today 2010

In 1659, Dutch astronomer Christiaan Huygens was the first to describe Saturn's rings as a flat, circular disk, and the concept of a ringed planet first entered the human imagination.

SETI Institute: Life at the SETI Institute: From Galileo to Cassini -- 400 Years of Saturn's Rings 2010

                                                              Christiaan Huygens

The Stream and The Torrent (1st prologue) Brian Howell 2009

Titan was discovered on March 25, 1655, by Dutch astronomer Christiaan Huygens.

George’s Cosmic Treasure Hunt Lucy 2009

That discovery would await better telescopes and the observations, in 1655, of the Dutch astronomer Christiaan Huygens.

What Galileo Saw 2009

Titan was discovered on March 25, 1655, by Dutch astronomer Christiaan Huygens.

George’s Cosmic Treasure Hunt Lucy 2009

Titan was discovered on March 25, 1655, by Dutch astronomer Christiaan Huygens.

George’s Cosmic Treasure Hunt Lucy 2009

Titan was discovered on March 25, 1655, by Dutch astronomer Christiaan Huygens.

George’s Cosmic Treasure Hunt Lucy 2009

Just like John Locke, who had to ask Christiaan Huygens if he could take the mathematical demonstrations on faith (Huygens said he could), I read to see what larger argument Newton was making about the ways human beings could now make sense of material experience.

Guest Post: Tom Levenson on Isaac Newton as the First Cosmologist Sean 2008