Galileo was the first to discover the moons of Jupiter. Michael Benson / Kinetikon Pictures / Corbis (Jupiter) / Scala / Art Resource, NY (Galileo) Inside a glass case was a plain-looking tube ...

Galileo Galilei was born on February 15 ... where he taught geometry, mechanics and astronomy. But many of his teachings went against the beliefs of the Roman Catholic Church, which was extremely ...

On this date, Jan. 7, 1610, astronomer Galileo Galilei, with a homemade telescope, noticed three points of light near Jupiter. Initially believing they were distant stars, Galileo’s repeated ...

Galileo Galilei was the founder of modern physics ... mechanics and the strength of materials, optics and astronomy. He continued to develop, correcting earlier errors, admitting his ignorance ...

Early telescopes were all refracting telescopes of the kind Galileo made. While they revolutionized the science of astronomy, they had some innate downsides. The act of refraction also causes ...

By the 17th century, famed engineer and astronomer Galileo Galilei refined Copernicus' heliocentric model using observations made with telescopes he built himself. However, it was not until Kepler ...

On a cold January day in 1642, Galileo Galilei took his last breath ... Galileo laid the groundwork for observational astronomy and mechanics. He gave us the law of falling bodies, the first ...

Galileo Galilei is arguably the most important scientist to ever live. He perfected the first telescopes, turned them toward ...