Scientists have a threshold for planetary destruction. An object roughly 96 kilometers wide, striking Earth, would wipe out every living thing on the surface. Jupiter has several moons that clear that ...

Astronomers have found 12 more moons orbiting the planet Jupiter. These moons are all small — just 5 kilometers or less across — and one of... Galileo Would Be Stunned: Jupiter Now Has 79 Moons More ...

Galileo was the first person to see Jupiter's moons. He eyeballed the four brightest through his small telescope on winter evenings in early 1610. When I was a boy Jupiter had 12 moons. More than 275 ...

Astronomers are still finding moons at Jupiter, 400 years after Galileo used his spyglass to spot the first ones. The latest discovery of a dozen small moons brings the total to 79, the most of any ...

CAPE CANAVERAL, Fla. (AP) — The solar system has a new winner in the moon department. Twenty new moons have been found around Saturn, giving the ringed planet a total of 82, scientists said Monday.

Look up tonight and you would see 79 moons instead of one. Most would look like unusually bright stars, but four of them would hang there as full glowing disks. It would be the most spectacular night ...

A crescent Moon passing in front of our solar system’s largest planet is a rare and brilliant sight. Here's how to see it for ...

On Tuesday, Oct. 6, the moon will occult Jupiter before sunrise, creating a rare celestial spectacle visible across eastern North America and beyond.

Add Yahoo as a preferred source to see more of our stories on Google. Thin crescent moon shining above silhouetted trees in the foreground. Today (Sept. 8), skywatchers can first catch a striking ...