On July 6, 1938, an American astronomer named Seth Barnes Nicholson discovered Jupiter's moon Lysithea. Nicholson spotted Lysithea from Mount Wilson Observatory in California, where he had previously ...

A dozen new moons have been found orbiting Jupiter, including 11 normal moons and one “oddball” moon, according to Carnegie Institution for Science.

NASA’s Juno spacecrafthas once again delivered breathtaking images of Jupiter, capturing the giant planet’s swirling storms and cloud bands in extraordinary detail. These latest photos, taken ...

Jupiter was once as much as 2.5 larger than today. To better understand Jupiter’s primordial stages, researchers turned to the tiniest of the planet’s 92 known moons. Almathea and Thebe ...

They also offer further evidence of Jupiter’s influence on the broader architecture of the solar system. For the study, the researchers combined analysis of the orbits of Jupiter’s moons near Jupiter ...

Jupiter, the solar system's largest planet, used to be even bigger, according to a new study. The cloud of gas and dust from which the sun and planets formed dissipated around 4.5 billion years ago.

Adams and Batygin discovered that, approximately 3.8 million years after the solar system's first solids appeared, Jupiter’s radius was nearly twice its current size.

The last time the two planets were this close and visible from Earth was in 1623, just 14 years after Galileo built his first telescope and around the time Jupiter's moons were discovered.

According to their work, Jupiter's radius was once two to two-and-a-half times its current radius—large enough to contain more than 2,000 Earths. The planet's magnetic field was also 50 times ...

While the moons are visible through 7×50 binoculars, if you want to catch these events in detail and enjoy the beauty of Jupiter’s colorful clouds, a telescope with at least 6 inches of ...

Jupiter will be at its brightest all year on Saturday, Dec. 7. Break out your binoculars for a chance at spotting its four largest moons. Jupiter at Opposition This Weekend: Here's the Best Time ...

The ringed gas giant Saturn has officially replaced Jupiter as the planet in our solar system with the most moons. The International Astronomical Union officially recognized 128 new moons orbiting ...