Pluto has been added to the University of Arizona’s scale-model walking tour of the solar system, but will that be enough to mend the dwarf planet’s broken heart? Not likely, according to a recent ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

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The Sun is an incandescent but benevolent dictator. For billions of years, it’s kept our star system well organized through the influence of its powerful gravity. All the planets revolve around it on ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today." Astronomers have discovered a massive new solar system body located ...

Astronomers have spotted a planetary system being conceived from the swirl of gas and dust surrounding a star — giving us an unprecedented, real-time look at how our solar system would've formed some ...

Our solar system’s origin story spans billions of years and involves clouds of gas, cosmic collisions, and planetary migrations that shaped the worlds we know today. While it may seem intuitive that ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...