Editor's note: This article was updated March 25 at 11:40 a.m. ET to account for the recent discovery of new moons around Saturn and Jupiter. The total number of planetary moons and small-body ...

Everyone knows Earth has one moon. That big, bright object in the night sky is the Moon with a capital M. But astronomers have discovered that Earth actually has several other moonlike objects ...

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 ...

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Quick, when you look at the night sky, how many moons do you see? It’s hard to believe, but some reports circulating on social media say there are two moons and there will be for several decades. One ...

In a celestial plot twist that no one expected, the Earth has recently acquired a brand new moon for the grand total of two. The new “moon” is actually a fairly small asteroid, unimaginatively named ...