July 25 has been a date marked by remarkable events that have shaped history.One of the most profound events occurred on July ...

400th Anniversary of Galileo's Telescope. Scientist celebrated today for changing our view of the universe. By ABC News. August 25, 2009, 1:54 PM. Aug. 25, 2009 — -- Who invented the telescope?

Two new moons have been discovered orbiting Jupiter, bringing the total number of natural satellites orbiting the gas giant ...

Four hundred years ago this month, Galileo Galilei turned a telescope skyward. What he saw -- stars around Jupiter -- would revolutionize astronomy. The stars, which after further examination he ...

Galluzzi said Galileo used a telescope, not necessarily the one in the Philadelphia show, to identify the four moons of Jupiter on January 13, 1610. "He was the first man who had the privilege of ...

Since Galileo first observed them through his telescope in the early 1600s, sunspots have fascinated scientists.

Galileo's telescope allowed him to magnify the planets, just points of light to the unaided eye, into bright discs covered in colorful features. Where the Mk.

Hans Lippershey's ingenious spyglass -- Galileo's new window on the heavens -- Johannes Kepler, the nearsighted wizard -- Isaac Newton's reflecting telescope -- William Herschel's giant reflectors -- ...

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 ...

The mottled brown cylinder on display at The Franklin Institute science museum is a 400-year-old telescope used by Galileo Galilei, whose observations of the heavens ultimately ...

The first publication by Galileo Galilei has set a new auction record for the celebrated astronomer, selling for $1.5 million at Christie's.