Scientists found proof that a giant early planet existed in the solar system 4.5 billion years ago.

The largest moon in the solar system — Jupiter’s Ganymede — has a unique and inexplicable magnetic field. New research could ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Three secret moons have been discovered lurking out of sight in our ...

A study suggests that the ice giant's largest moon, Triton, made a dramatic entrance to the Neptunian system long ago, kicking Nereid outward and destroying the planet's other original lunar companion ...

Most scientists agree that a major collision 4.5 billion years ago with a protoplanet named Theia formed the Earth-Moon system. Now, a new study from the University of Nevada argues that, out of the ...

The Blue Micromoon of 31st May 2026 is more likely to be red-coloured and enormous. Why this late-spring full Moon could defy expectations ...

The moon is Earth’s only friend. And yet—despite a relationship stretching back billions of years—the gap between us only grows wider. Someday, far in the future, we will be left alone. What happens ...

A researcher has used advanced models that indicate that the formation of Pluto and Charon may parallel that of the Earth-Moon system. Both systems include a moon that is a large fraction of the size ...

If you were hoping to see the “mini moon,” you’ve probably been disappointed. But experts say the asteroid was an important milestone in planetary defense research. Though there are hundreds of moons ...

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