Free Information Article by Galileo

In a world illuminated only by fire, Galileo described in detail the surface of the Moon, which we now know is 238, 857 miles away. His Sidereal Messenger, also translated as Starry Messenger, was the first-ever treatise to detail astronomical observations made through a telescope. Galileo suggested that the Moon's surface was not smooth, as his contemporaries thought. Hoping for a patron, he dedicated his work to Cosimo de'Medici II and named the four planets he discovered in 1610 the Medicean Stars. Today, these four moons of Jupiter are, collectively, the Galilean Moons.

I enjoyed reading this work by Galileo. I post it here in hopes that the link will last. The Teaching Company is a wonderful entertaining self-educational resource!

~ Elizabeth

tags: galileo  moon  planets  jupiter  moons  astronomy  science  self education  resources  

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