Space has a knack for bending our sense of scale. The Moon feels close enough to touch—after all, we see its craters with ...

What is the difference between a moon and a planet? Trick question! According to scientific definitions, there often isn’t much of a difference at all. That might seem counterintuitive, but it’s true.

Earthlings have never been terribly sophisticated cosmic tourists. Ask us which worlds we’d like most to visit and our answers are always the same: Mars! Jupiter! Saturn! Neptune! But there’s a ...

The moons were discovered by a group of astronomers from Taiwan, Canada, the United States, and France. Between 2019 and 2021, they used the Canada France Hawaii Telescope to repeatedly monitor the ...

A team using the telescope atop Mauna Kea in Hawaii has just discovered 128 new moons orbiting Saturn. Saturn, the sixth planet from the sun, was already the reigning champion of moon-having. A 2023 ...

About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across ...

On Earth, you can look up at night and see the Moon shining bright from hundreds of thousands of miles away. But if you went to Venus, that wouldn't be the case. Not every planet has a moon — so why ...

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