Beneath Europa’s icy crust lies a hidden ocean that could harbor alien life. Follow the story from Galileo’s first glimpse of ...

What would happen if Jupiter’s moons scattered? Explore the orbital chaos and potential collisions caused by displaced moons.

Astronomers recently detected a stray quasi-moon in our planet’s orbit, but it's hardly the first stowaway to hang out around ...

Welcome to retrograde season! If you’ve been feeling pulled into more self-reflection, meditation, restfulness and compelled to address loose ends once and for all, you’re feeling the effects of not ...

Many historians think that Nov. 1, known for the festival of Samhain, was the ancient Celtic New Year’s Day. Samhain, Old Irish for “summer’s end,” was a harvest festival that may have contributed to ...

An artistic rendering of a dust and gas disk encircling the young exoplanet, CT Cha b, 625 light-years from Earth. Full image, annotation, and caption shown below. Credit: NASA, ESA, CSA, STScI, ...

The recently spotted asteroid 2025 PN7 appears to be the source of the rumor mill about Earth's supposed second moon. Earth has several quasi-moons that get their name due to the fact that they ...

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Be sure to look up for one of October's most beautiful sky pairings Cheng Xin/Getty On Monday, Oct. 13, into early Tuesday, Oct. 14, the moon and Jupiter will appear side by side just before midnight ...

The period features lunar close approaches to Uranus and Jupiter, including the Last Quarter Moon phase. Jupiter also presents transit events of its Galilean moons, Io and Europa, accompanied by their ...

Jupiter hosts the brightest and most spectacular auroras in the Solar System. Near its poles, these shimmering lights offer a glimpse into how the planet interacts with the solar wind and moons swept ...