If it's there, the rumored Planet 9 may have company. 📡 engineering
Computer simulations hint at a Mars-sized twin beyond Neptune
The new study examines data from the mysterious third zone of the solar system, and suggests that, beyond Neptune, there might be something the size of Mars lurking in the darkness. Modern astronomy categorizes all known planets in our solar system into three types. You're on one of the first, since the Earth is one of the fourthat orbit the sun within the main asteroid belt that separates Mars and Jupiter.
But the third region of our solar system lies beyond what we typically include in casual conversation about the local planets. Out beyond Neptune is the realm of dwarf planets like Pluto, Sedna, Eris, and even tinier bodies, like comets. But this is all wrong, according to the researchers of the recent study.
Multiple models that most closely approximate our real solar system start with at least one extra planet in a baffling position, according to Volk and Gladman. These models hint that the outer solar system used to house one or more rocky planets, roughly the size of Earth or Mars, in addition to the colossal gas and ice giants we now have.
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