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Based on Jupiter's composition, researchers have made the case for an initial formation outside the molecular nitrogen (N 2) snow line, which is estimated at 20–30 AU (3.0–4.5 billion km; 1.9–2.8 billion mi) from the Sun, and possibly even outside the argon snow line, which may be as far as 40 AU (6.0 billion km; 3.7 billion mi).
This model posits that, 4.6 billion years ago, the Solar System was formed by the gravitational collapse of a giant molecular cloud spanning several light-years. Many stars, including the Sun, were formed within this collapsing cloud. The gas that formed the Solar System was slightly more massive than the Sun itself.
After 500–600 million years (about 4 billion years ago) Jupiter and Saturn fell into a 2:1 resonance: Saturn orbited the Sun once for every two Jupiter orbits. [47] This resonance created a gravitational push against the outer planets, possibly causing Neptune to surge past Uranus and plough into the ancient Kuiper belt. [69]
Once every 53.5 days, NASA's Juno probe screams over Jupiter's cloud, capturing stunning images in the process. NASA's $1 billion Jupiter probe just sent back dazzling new photos of the giant ...
<p>Jupiter is the largest planet in our Solar System, and the competition really isn't even close. It's an absolutely massive planet and it helped define what a gas giant planet truly is. Because ...
The planets are, in order of distance from the Sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. There are three main belts of minor bodies: The asteroid belt, between Mars and Jupiter. The Kuiper belt beyond Neptune, followed by the scattered disc. The Oort cloud in the boundaries of the Solar System.
Traveling above Jupiter at more than 130,000 miles per hour, NASA's $1 billion Juno probe took its ninth set of stunning flyby images on October 24.. But the sun slipped between the giant planet ...
The closest well-measured approach was Scholz's Star, which approached to ~ 50,000 AU of the Sun some ~70 thousands years ago, likely passing through the outer Oort cloud. [267] There is a 1% chance every billion years that a star will pass within 100 AU of the Sun, potentially disrupting the Solar System. [268]