Galileo continued writing in conversational language for his landmark 1632 work, Dialogo sopra i due massimi sistemi del ...

Still, even Galileo recognized the ground-based uses of telescopes. After building his first telescopes, Galileo demonstrated the new instrument to the Venetian Senate, including military leaders.

Object Details Author Land, Barbara Contents Hans Lippershey's ingenious spyglass -- Galileo's new window on the heavens -- Johannes Kepler, the nearsighted wizard -- Isaac Newton's reflecting ...

Looking for the perfect Christmas present for a young stargazer? Rush to snap up one of the best telescopes for kids, the Celestron AstroMaster, 15% off for Cyber Monday.

Five years after the appearance of the great supernova of 1604, Galileo builds his first telescope. He sees the moons of Jupiter, Saturn's rings, the phases of Venus, and the stars in the Milky Way.

Using a telescope typically means pointing it upward and hoping to land on something unique. You can find the moon, maybe a constellation, but after that, all those stars begin to look alike. So what ...