(For more on the controversy Galileo spawned, see His Big Mistake.) Building a better refractor The spyglass-turned-telescope had limitations, some of which Galileo was able to design around.

Shortly after he began producing his binoculars, news of the telescope reached Galileo. These days, the telescope is mostly closely associated with the night sky, but it's also useful on land and ...

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.

Galileo used his device, as shown in Fig ... The drive was then on to build bigger and more powerful telescopes with greater magnification. It was soon realized that what was to become known ...

An image of a "spectacular" solar eclipse on Jupiter has mesmerized viewers on Reddit.The incredible moment was captured by ...

Even though it had been observed in the sky since prehistory, it wasn’t until Galileo came along with his trusty telescope that more was found out about it. In fact, what he saw surrounding the ...

NASA hopes to launch the Europa Clipper mission. It will then spend the next five years travelling 628.3 million kilometers ...

NASA is set to launch a jumbo spacecraft, Europa Clipper, to see if an icy moon of Jupiter has the characteristics of a ...

NASA's Europa Clipper spacecraft lifted off Monday from Kennedy Space Center in Florida aboard a SpaceX Falcon Heavy rocket, ...