How do scientists think Jupiter formed so quickly in the early Solar System?
Quick Answer
The leading idea is that a large solid core formed first and then rapidly captured gas from the solar nebula. Jupiter likely became the biggest planet before the Sun’s gas disk disappeared.
The Full Story
Jupiter is mostly hydrogen and helium, which means it had to form while the Sun’s gas-rich disk still existed. In the core-accretion model, a solid core of rock and ice formed first, then its gravity pulled in huge amounts of gas very quickly. Because Jupiter is so massive, it likely reshaped the early Solar System by stirring up smaller bodies and influencing the formation of other planets. NASA’s Juno mission is helping scientists study Jupiter’s interior to better understand how such a giant planet can form.
Key Facts
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Suggested video title for this topic:
"How Jupiter became a giant before the Solar System ran out of gas"