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In the time Pluto was found, classified as a planet and reclassified as a dwarf planet, it has not completed one orbit. One ...

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 ...

Charon is half the size of Pluto. The satellite is the closest in size to its parent of all the moon-planet pairs in our solar system. The moon is so hefty that it influences Pluto’s spin.

Pluto is the farthest planet from the sun, not to mention the tiniest planet in our solar system, but it holds immense astrological power right now. This small rock hasn’t experienced a zodiac ...

Since the formation of Earth approximately 4.5 billion years ago, the convection and release of hot magma in its mantle layer ...

Are there hidden planets in our solar system? New technologies, like the powerful Rubin Observatory, brings us closer to ...

Famously, Pluto no longer met the criteria ... but it's an attempt to match the complicated nature of our unfolding knowledge of the solar system. We live in an active, dynamic system, where ...

Solar and cosmochemical data indicate high levels of carbon, nitrogen, and oxygen in the Sun. Researchers have unveiled a new ...

Pluto's most prominent feature is a great ... superionic ice may turn out to be the most common form of water in our Solar System. As we get closer to the Sun, ice begins to look more familiar.

After a year and a half of moving back and forth between Capricorn and Aquarius, Pluto makes its final entrance into boundary ...

A Southwest Research Institute-led team combined compositional data of primitive bodies like Kuiper Belt objects, asteroids ...