Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Artistic representation of the huge and slow impact on Pluto ...
Explore Pluto's reclassification as a dwarf planet and how Eris's size advantage challenges old beliefs about planetary status. Images taken in December 2005 by Brown and others with the Hubble Space ...
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How Pluto captured a moon almost its own size
Pluto’s largest moon, Charon, has become central to research on how small worlds form and evolve in the outer Solar System. The pair orbits a shared centre of mass that lies outside Pluto’s surface, a ...
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Pluto’s biggest problem has been hiding in plain sight
Pluto has long been one of the most controversial objects in our Solar System. For decades it proudly held the title of the ninth planet, only to be reclassified in 2006 as a dwarf planet. That ...
Forbes contributors publish independent expert analyses and insights. Amanda Kooser covers the quirky side of science and space. Pluto has five moons, but Charon stands out from the rest. Charon is ...
Why are there moons at the edge of the solar system that cause their rotation axes to fluctuate as if ignoring the laws of ...
Pluto is no longer a planet. The world’s top group of astronomers, the International Astronomical Union, has stripped Pluto of the status it has held since its discovery 76 years ago. The body decided ...
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