Mercury is the smallest planet in our solar system. It is the closest to the Sun and has extreme temperature changes between ...

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

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A ninth planet may exist beyond Neptune in the Kuiper Belt, a region populated by icy bodies that orbit the Sun.

Legendary Star Lacks Evidence for Large Planet Construction Ever since the dawn of human consciousness, skywatchers have been ...

We’re showing that, everywhere we look now, there was some sort of magnetic field that was responsible for bringing mass to ...

Tiny grains from asteroid Ryugu are revealing clues to the magnetic forces that shaped the far reaches of the solar system over 4.6 billion years ago. The findings suggest the distal solar system ...