Check out A new vantage point by Larry Kunz. Here is an excerpt:
Around 1610, Galileo Galilei, pointing his newly invented telescope at the sky, became the first person to see bulges on both sides of the planet Saturn. He didn’t know what they were. It took 45 years before another astronomer, Christiaan Huygens, figured out that they were rings surrounding…
The full article is available here.
