The saying "once in a blue moon" means something that rarely happens. As it turns out, a blue moon, meaning the second full moon in one month, is not extremely rare and is not blue. But even so, our ...

How far it is from the sun: 886 million miles (1.4 billion kilometers), on average How big it is: 72,400 miles (116,500 km) across, or almost 10 times the size of Earth. How many moons it has: At ...

CAPE CANAVERAL, Fla. (AP/NEXSTAR) — Stargazers are in for twice the show this week: a rare blue supermoon with Saturn peeking from behind. The cosmic curtain rises Wednesday night with the second full ...

Stargazers enjoying the splendor of August's "Sturgeon Moon" — which is also a blue supermoon — on Aug. 20 may have noticed something peculiar: a planet disappearing from the sky. Taken between ...

Saturn appeared close in the sky to a Moon that was both a supermoon and a blue moon on the night of Wednesday, Aug. 30. While the conjunction of Saturn with the Moon occurs frequently, it is rare for ...

Saturn will be visible all summer, but if you really want a show, look up this week. The sixth planet will be in opposition to the sun, meaning the Earth will be directly between them. This will make ...

With its beautiful rings, Saturn may be the most stunning planet in the solar system. It is the sixth planet from the sun and the second-largest planet in the solar system, after Jupiter. Though ...